Senate confirmation of a presidential appointment requires

A simple majority vote is the right answer.

Senate approval of a presidential nomination requires a simple majority vote to be victorious. However, when it comes to nominees for  Supreme Court, it requires votes of at least sixty Senators to be successful. This is principally due to the fact that magistrates serve the Supreme Court for a lifetime, while the additional presidential posts typically vary with each regime.

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

i would say your answer is a)

sorry if im wrong