Congress a. can terminate a state of emergency declared by the president only with a joint resolution of the two houses. b. cannot terminate a state of emergency declared by the president. c. can terminate a state of emergency only by impeaching the president. d. can terminate a state of emergency only by convening an "emergency committee" composed of the Speaker of the House, the majority leader of the Senate, and the chief justice of the Supreme Court, as described in Article I of the Constitution.

a. can terminate a state of emergency declared by the president only with a joint resolution of the two houses.

Explanation:

A president may claim emergency by two ways by two ways either through implied authority of US Constitution and authority granted by the Congress.

Congress has the right to vote to terminate the national or state emergency. For this the majority of votes of two houses are required. The president can only declare the termination of the emergency by the joint resolution of both houses.  

This requires a statute to meet every six months, while the emergency is in effect.    

rain should be the answer.

the correct answer is c.