To cut off food and supplies and bombar a city until its defenders give up_____? (complete)?

-a. Gettysburg address

b. foraging

c. George Meade

d. Ulysses S. Grant

f. siegeTo cut off food and supplies and bombard a City until its defenders give up is called a siege. So the answer to your question is f. siege.
That would be (f.) Siege
Yup,a siege.
maybe f