The answer is B.
Wegener could not explain how similar fossils could be found on different continents.
It was the internal reforms of Mikhail Gorbachev, the last Soviet leader that led to the end of the Cold War
Many greek city-states encouraged migration to areas outside of Greece during the 8th and 7th centuries B.C in order to "<span>c. Establish bases for commercial and military expansions" which the Greeks desperately needed.</span>
As the first peaceful transition of political power between opposing parties in U.S. history, however, the election of 1800 had far-reaching significance. Jefferson appreciated the momentous change and his inaugural address called for reconciliation by declaring that, "We are all Republicans, we are all Federalists."
For more info http://www.ushistory.org/us/20a.asp
