Mikhail Gorbachev resigned as president of the Soviet Union in December 1991. Why? Because __________.
A. the U.S.S.R. was dissolved in December 1991
B. Boris Yeltsin had been chosen to replace him as leader of the nation
C. his set term of office elapsed
D. he lost a vote of confidence in the Soviet parliament
Mikhail Gorbachev resigned as president of Soviet Union in December 1991 because the U.S.S.R. was dissolved in December 1991. He was the President of the Soviet Union from March 15, 1990 until December 25, 1991. The correct answer is A.
