A mass extincrion. It wiped out 95% of marine life and 70% of land life.
Some of the cities that conquered during Muhammad's period were <span>Medina, Mecca, Damascus,and Baghdad,
Back then, this city were so flourished and became the center of civilization in the world due to many intellectuals that contributed greatly to the world started appearing from these regions.. By the time of His Death, the Islamic influence has spread to most of the Arabian region.</span>
It's a very long sentence with a lot of information, but it is still only a simple sentence (option b): it has only one verb (taught). In order to qualify as a complex or compound-complex sentence, it would have to have at least 2 phrases, each with a different verb.
I took this today its a and c
