GMAT Sentence Correction (SC) | Re: Verbal OG 2016 - Global warming is said to be responsible for extreme

Global warming is said to be responsible for extreme weather changes,which, like the heavy rains that caused more than $ 2 billion in damages and led to flooding throughout the state of California , and the heat wave in the Northeastern and Midwestern United States, which was also the cause of a great amount of damage and destruction.

(A) which, like the heavy rains that caused more than $2 billion