Question

zack takes 500 mg of vitamin c daily. he advises his friends to take vitamin c supplements because, he claims, the vitamin protects him from cold viruses. his claim about the usefulness of the vitamin is an _______. multiple choice in vitro assumption introspection anecdote in vivo report

Explanation:

An anecdote is a personal account or story used to support a claim. Zack's claim about vitamin C protecting him from cold viruses is based on his personal experience (taking 500 mg daily and feeling protected), which fits the definition of an anecdote. "In vitro assumption" refers to assumptions from lab - based (not living) studies, "introspection" is self - examination of thoughts, and "in vivo report" is about studies in living organisms, none of which match Zack's personal - experience - based claim.

Answer:

C. anecdote