Respuesta :
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.
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.