Read the passage. In 79 CE, Mount Vesuvius erupted, burying the city of Pompeii in mud and ash. After investigating, historians found that the volcano was part of a series of events that people had ignored. In 62 CE, Pompeii experienced a large earthquake. After this earthquake, many smaller earthquakes occurred. Based on this, the people of Pompeii should have known that another serious natural event was likely to happen. Even as the volcano started to erupt, people stayed to clean up the falling ash. The eruption completely destroyed the city and killed many people. What caused historians to think that the eruption of Mount Vesuvius in 79 CE was not the only reason why the residents of Pompeii died?
A. Sources from that period explain that residents fell ill and died from the volcanic mud.
B. Newly discovered accounts explained that most residents died instantly from fires after the eruption.
C. Sources from that period show that residents did not take the threat of eruption seriously and stayed in the city.
D. Recent scientific advances proved that polluted water from the volcano most likely killed any residents who drank it.

Option:  C. Sources from that period show that residents did not take the threat of eruption seriously and stayed in the city.                

Explanation:

The cities Pompeii and Herculaneum were part of the Roman Empire until the Volcano eruption of Mt. Vesuvius in 79 AD. The eruption lasted 18 hours which buried Pompeii and Herculaneum with ash, volcano rocks, and gases which killing thousands of people.  The volcanic eruption of Vesuvius caught the local population utterly unprepared even though they got warnings of frequent earthquakes. They did not take the alarm seriously and continued in getting on with their busy lives. The ash and gases were not the primary causes of death in the region but, was the heat that killed most people because of extreme thermal shock that led to the pyroclastic surge.  

the industrial development of cities in the ruhr area in the nineteenth century is described. the research was based on english and german language sources. several factors that shaped growth and paths of the cities were categorized and analyzed. they are locations, resources, traditions, entrepreneurs, and technological developments. locations and resources were the most important among them; other factors may be regarded as consequences from locations and resources. among the cities, bochum, essen, gelsenkirchen, and dortmund had the richest resources and most favorable locations in the transportation network and grew to be the largest cities in the ruhr area near the end of the nineteenth century. riverside location was also a favorable factor for the development, as shown in the development of duisburg on the confluence of rhine and ruhr. resource distribution can explain the rise of textile industry, metallurgical industry, and coal and iron industries, and the northward progression of the mining industry. tradition was an important factor for cities such as krefeld, barmen, elberfeld, solingen, and remscheid, which experienced development based on their traditions through the nineteenth century. various entrepreneurs exerted influences within and beyond the local level over the ruhr area. technological development stimulated the northward progression of the mining industry and the deep connection between the coal and the iron industries.