Answer:
B) Appointing members of congress
Step-by-step explanation:
The executive branch of the government makes sure that the laws of US are obeyed.
President is the head of executive branch, he is assisted by vice president, cabinet members and heads of various independent agencies. He is also head of the state and commander in chief of US armed forces. He signs the legislation from congress into law or can veto it.
He appoints the members of congress, Article 2, Section 2, Clause 2 allows the president to appoint public officials with advice and consent of the US Senate.