The answer to the first question is A
the second question is B
the third question is B
the fourth question is C (I'm not sure)
The most important city in the Islamic religion is Mecca. ... The city is still the most important city in Islam today. When Muslims pray each day they pray toward the city of Mecca. Also, each Muslim, if able, is required to make a pilgrimage (called the Hajj) to Mecca at least once in their life.
Considering that the Qin Dynasty was the 1st imperial dynasty of China, it would definitely be that **A civil war broke out** (since there was a more large power vacuum to be filled.)