Which of the Following Examples Illustrates Reliance on Deductive Reasoning

Multiple Choice

Which of the following examples illustrates reliance on deductive reasoning?

A) Paul believes a vaccine works because his doctor says that it does.
B) Bill concludes that his car uses unleaded fuel because it is an Escort and all Escorts use unleaded fuel.
C) Juan assumes that black holes exist because scientists have told him that they do.
D) Jack concludes that all mammals have fur based upon observing his cat and dog.