Which logical fallacy is used in the text?
Mr. Silva argues that we need to do more to prevent workplace injuries and fatalities. I doubt that someone so socially awkward would know a thing about office safety.
A. ad hominem: a personal attack against one's opponent
B. false dichotomy: an argument that presents only two choices when more options exist
Select the correct answer from the provided options and reply with the letter associated with it.

A