Almost certain it is B, Indian removal act.
Explanation:
In Africa the climate is very harsh
To trade sometimes people have to go very far distances and cross many different climate zones
For example in the desert climate zone, temperatures in the day can get very hot. At night the temperatures can drop below zero.
The harsh climate can affect how fast it will take for traders to get from one place to another. The climate can also affect the amount of goods or kinds of goods the traders can bring or purchase.
Answer:
The annexation of Texas led to a war with Mexico which led to us gaining some more territory. He didn't want to do it because it would lead to a war, but did it anyway which declared war. In short, if you haven't figured it out already by taking the test for AZVA, he wanted to avoid war with Mexico.
Answer:
establish democratic government throughout Europe
The answer to this question is B