Which of the following caused the great migration of the early 1900s?
a. race-based discrimination and violence in southern states
b. long working hours and poor housing conditions in northern
states
c. religious persecution in europe
d. lack of land and job opportunities in asia
submit

if i am not wrong it's b. because they were getting tired of being treated poorly, they had horrible working conditions, and they wanted to find better places to work, and that paid a little better. and they got tired of staying in such small spaces.

Explanation:

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.