The correct answers are:
E. Massive flooding disrupted farming
C. A series of wars forced people to leave the area
The Indus River Valley Civilization, also known as the Harappan Civilization, extended from Afghanistan, Pakistan and northwest India.
Answer:
The trade route were very important to the Ghana empire because the Ghana Empire became rich and wealthy as a result of increased trans-Saharan trade. This trade involved mostly goods such as gold and salt.
It allowed for urbanization and also permitted territorial expansion to gain control over the different trade routes.
Although you did not provide the scenarios, the answer would have to deal with African-americans not being granted citizenship even though they were freed, naturalized, or born within the US. Any African-American that would be denied would be a breach of the 14th amendment.