The fall of Constantinople and the continuing religious wars in Europe facilitated

A) Ottoman expansion into Europe.
B) Ottoman expansion into Russia.
C) the alliance between the Ottoman Empire and Venice to take back Cyprus.
D) the blockade of the Aegean Sea.
E) the continued expansion of Protestants into the old Byzantine Empire.

What group,led by Nikolai Bukharin,broke with Stalin over the policy of collectivization?

A) the Right Opposition
B) the Left Opposition
C) the Politburo
D) the Trotskyists
E) the Social Democrats

Up to the 1650s, the expansion of African slavery in the Chesapeake area was a gradual process due to

A) the decline in the numbers of available slaves because of internal warring among African nations.
B) the decline of trade with West Indies' planters.
C) a plentiful supply of indentured servants.
D) the fact that African slavers did not want to deal with the English laws of slavery practiced in the Chesapeake region.