Why did the farming villages of west africa expand? a. they were forced due to the drying of the land. c. the population grew too large to stay in one place. b. they wanted to be a part of the riches of the salt and gold trade. d. they began accumulating a surplus of crops.

Can someone me out with this , i'm putting 30 points on it

Amagazine is holding a contest for amateur historians. it plans to publish two articles responding to the following claim: "the united states should never have engaged in proxy wars during the cold war." the magazine will publish one article that supports the claim and one article that opposes it. you'd really like to win both prizes, so you've decided to submit two articles – one supporting each side. each of your articles should use historical evidence to support each position and should discuss at least three instances of proxy wars or u.s. military intervention in different regions of the world.

What was the goal of the house un american activities commitee?