The answer is C an "ICBM" is primarily designed for nuclear weapons delivery.
It is an expressed power provided by the Constitution
<span>Expressed powers are those specifically named in the Constitution. They are sometimes called delegated powers or enumerated powers. </span>
It was a gamble, and most observes argue that khrushchev lost. in his memoirs, he claimed that the outcome of the missile crisis was a triumph of soviet foreign policy and a personal triumph, but few, even on the soviet side, have seen it that way. Cuba was perhaps a subsidiary consideration for khrushchev.