Which of the following symbolized the end of communism in europe a) the fall of the berlin wall b) the collapse of the soviet union c) the destruction of a statue of stalin d) the summit between gorbachev and reagan

Plz ive been stuck on this question forever. in 1753 george washington was sent on a mission to a. build a fort at the point where the allegheny and monongahela rivers form the ohio river. b. attack the french at fort duquesne. c. attack the french at fort neccessity. d. deliver a message to the french demanding that they leave the ohio river.