Question

Should there be a(n) __________ leaving the president, vice president, speaker of the House, and president pro tempore unable to assume the duties of the president, the Cabinet represents __________.
A.
catastrophe . . . the presidential order of succession
B.
security threat . . . the body that appoints a new president to office
C.
catastrophe . . . the office of the president until a new president is elected
D.
security threat . . . the supreme authority in government until the threat is eliminated