What are the significance of Archaeological discoveries in East Africa to our understanding of its prehistory?

The correct answer to this open question is the following.

Although there are no options attached we can say the following.

The significance of archaeological discoveries in East Africa to our understanding of its prehistory is that "archeologists have found artifacts that help historians correct a false understanding of East Africa’s history."

In recent years, scientists and archeologists have made some important discoveries that changed the original perception of the evolution of humans that started in that region of Africa.

Human fossils have been dated as far as 200,000 years ago. We are talking about H*mo Sapiens fossils.

The earliest fossilized human remains have been found in Eastern Africa.

Ethiopia is the place in Eastern Africa where the earliest fossilized human was found. Anthropologists have named the skeleton "Lucy," a 3.2 million years ape. Lucy was an  Australopithecus afarensis early human. It was discovered by Donald C. Johanson, in 1974, close to Hadar, Ethiopia.  

hello there!

the graphics that you have attached within the question, indicates that few people in bolivia work in industry according to its labor force.

however, the graphic that is on the right side of the picture shows the gdp sector in bolivia. this gross domestic product is a macroeconomic magnitude   that shows the monetary value of all finished goods and services within a country's borders in a specific time period. in this case, the graphic is showing the monetary value in each sector -agriculture, industry and services- of bolivia in 2012.

so, although the first graphic located at the left side indicates that not so many people work in industry, this is the second most important sector according to the gdp metrics because of the monetary value that impacts on its country. it does not need to be the most valuable one. if it makes an impact on the country's economy, it will be definitely crucial to it.

i think the answer is the one about environmental and social health.

hope this