Why does the midpoint partition a segment into a 1:1 ratio

I'm pretty sure it's c. extremely gradual but not 100% sure though.

Ashould be answer.

How is this a question? where are the answer choices?

"central america is subject to fierce which drop large amounts of on the region. another threat in the region is activity such as earthquakes and volcanoes caused by the shifting of the earth's large waves called may result in mass destruction. frequently crops are wiped out causing in the region." where is the question