Answer:
The Revolutions of 1989 formed part of a revolutionary wave in the late 1980s and early 1990s that resulted in the end of communist rule in Central and Eastern Europe and beyond. ... Romania was the only Eastern Bloc country whose citizens overthrew its Communist regime violently.
After Muhammad’s death in 632 CE, his friend Abu Bakr was named caliph and ruler of the Islamic community, or Ummah.
The mayor would operate the (Executive branch)
He mistrusted Hitler from 1933 and said Great Britian ought to re-arm to face the threat posed by Nazis.
D, is the final answer... others are simply not plausible
