Question

A responsibility of the vice president is to
Responses

join the House of Representatives if necessary.
join the House of Representatives if necessary.

declare war if necessary.
declare war if necessary.

become president if necessary.
become president if necessary.

join the Supreme Court if necessary.
join the Supreme Court if necessary.

Answer 1

become president if necessary.

(Another key duty is presiding over the Senate and casting tie-breaking votes; the VP does not join the House or the Supreme Court or declare war.)