One of the main reasons why salt was such an important trade commodity in the sub-Saharan Sahel region of Africa is because of its global high demand due to the fact that it was helpful in meat and food preservation.
C--Television is how most Americans became aware of the Civil Rights Movement.
Television brought the movement and the reaction of police officers into the living rooms of every American. It is easy to dismiss the writings of people you don't know but to see the evidence of abuse and inequality is harder to ignore.
Answer:
If I read that correctly, the answer would be the term, "petition"
Explanation: