In 1985, former soviet union leader mikhail gorbachev instituted a policy called perestroika. what was its aim?
a. to liberate the soviet press.
b. to quell soviet social unrest.
c. to centralize soviet politics.
d. to restructure the soviet economy.

Why did the crew of the zong ship throw some captive africans overboard? a. there was not enough space in the ship. b. the captives’ deaths were covered by insurance. c. the ship did not have adequate food. d. the ship did not have sufficient crew to care for the sick captives. e. the african captives rebelled against the crew.