While giving a presentation about the upcoming product launch, the manager cited an excerpt from Troilus and Cressida, a play written by William Shakespeare. In this scenario, which type of opinion did the manager use?

A) Literary quotation
B) Expert testimony
C) Lay testimony
D) General illustration

Literary Quotation

involves citing a phrase or passage from a literary work to enhance or illustrate a point.

Expert Testimony

Authoritative statements given by someone with specialized knowledge or skills in a particular area, often used in legal or legislative settings.

Lay Testimony

Testimony provided in a legal setting by a witness who is not considered an expert in the matter at hand, often based on personal observation or experience.