When a writer uses an expert to support a claim, the writer is using information from someone who has

firsthand knowledge of the subject.
written an argumentative essay on the subject.
written detailed journal entries about the subject.
specific and authoritative knowledge of the subject.

Respuesta :

Answer:

D) specific and authoritative knowledge of the subject.

Explanation:

Got it right on the test (Edge)

Answer:

D. Specific and authoritative knowledge of the subject.