Which word in the sentence is a gerund? Winning isn't important, or so the fans are saying since our loss. A. winning B. loss C. saying D. important

The correct answer is A, winning, because it is used as a noun here, and gerunds are often used as nouns.

Saying cannot be a gerund, because it is a part of present progressive tense 'are saying', which means that it has to be a present participle.

I think it is c. saying