Why is the Parthenon in ruins today?

a. Over time, the structure deteriorated.
b. It was bombed during World War II in the twentieth century.
c. It was hit by a rocket in the 17th century, and blew up from stored gunpowder.
d. The Ancient Romans dismantled the structure for war booty.
e. Christians wanted to destroy one of the last remaining pagan temples.

c. It was hit by a rocket in the 17th century, and blew up from stored gunpowder.