Which events mark the start and end of the World War II era?
O
A. The Soviet Union launches Sputnik, the Soviet Union collapses.
O
B. The U. S. battleship Maine sinks; the United States gains control of
Cuba.
O
C. Archduke Franz Ferdinand is assassinated; the United States joins
the war in Europe.
O
D. Germany invades Poland; the United States uses atomic bombs.

D

Explanation:

as we know the atomic bomb is known for ending a war but wich war?, well if we rember who helped create it (albert einstien)he was alive during wold war 2 but not by the cold war, he might of ben alive during ww1 but as a child or baby perhaps the only war were he could the atom bom is in ww2. please make me brainleast

answer

wages and job opportunities have grown slowly since the recovery began five years ago, while technology continues to change the nature of work. while many workers enjoy opportunities unimaginable a generation ago, many others feel the economy has left them b

explanation: