B. You are right!! It is a conplex sentence so you can slot the middle part of the sentence (between the two commas) in and out of the sentence: My cousin volunteers at the local clinic every weekend would be the base sentence but sentence B is a conplex sentence! Hope that helped your understanding.
I believe that A would be the correct answer.
A. The winds were uncontrollable.
What details or data appear in the text
