Answer:
The right answers are:
- To blockade the Confederate coastline.
- To control the Mississippi River.
- To capture Richmond, Virginia.
Step-by-step explanation:
A naval blockade would impede the South from receiving supplies and help from external actors; the Mississippi River was the South´s principal inland waterway and its control would severe communication among southern states; and capturing Richmond would be a huge blow that would interrupt command lines and affect morale.