Answer:
Based on the search results, the main cash crops of the following regions are:
a. South: Cotton is one of the most profitable cash crops in the South[4]. Other crops grown in the Southeast include soybeans, corn, wheat, cotton, rice, peanuts, sorghum, tobacco, and rye[2].
b. West: The search results do not provide a clear answer to this question.
c. Midwest: Corn and soybeans are the two main commodity crops grown on 75% of the Midwest's arable land[1]. Other crops grown in the Midwest include wheat, oats, strawberries, sweet corn, tobacco, tomatoes, watermelon[3].
d. Northeast: The search results do not provide a clear answer to this question.
In summary, corn and wheat are the main cash crops of the Midwest region.
Step-by-step explanation: