Why was the placement of missiles in Cuba so urgent for the United States? *
A)The missiles were so close to the U. S., giving the Soviet Union a nuclear advantage
B)Fidel Castro had continuously threatened to attack the U. S. with nuclear missiles.
C)It was a declaration of war by Cuba on the U. S., turning the Cold War into a real war-
D)The missiles had already shot down American U-2 spy planes over Cuba.

Correct answer is A)The missiles were so close to the U.S., giving the Soviet Union a nuclear advantage .

Explanation:

A is the correct answer as the missiles were located less than 100 hundred miles away from United States and presented a real threat for the safety of the country.

B is not correct as the missiles were kept in secret there.

C is not a correct answer as officially war was not declared, although situation was really tense.

D is not correct as this planes were the ones that discovered the existence of nuclear missiles. And, yes a spy plane was shot down.

explanation:

nutelal

i believe your answer is d)