If the Office of Vice President Becomes Vacant

If the office of vice president becomes vacant

A) it remains unfilled until the next election, and the Speaker of the House becomes president if the president dies.
B) the president nominates a replacement who must be approved by both chambers of Congress.
C) the president names a replacement that is not subject to congressional approval.
D) the president nominates a replacement who must be approved by the Senate.
E) the secretary of state becomes vice president.