Answer:
This eventually pulled countries in South America out of the debt crisis. Now, major economic activities include agriculture, industry, forestry, and mining.
Explanation:
B. Sails
The Egyptians were among the first to use sails on their ships to improve transportation.
I would say B is the best choice
Building human capital as early as elementary school is needed because you begin to learn knowledges and skills that prepare you for real life. ... The more learned and skillful we are, the higher our value as human capital