"The student government is like the sun, and the clubs, organizations, and committees are like the planets that revolve around it." This sentence is what figure of speech?

In a speech to the neighborhood watch group, Mr. Simmons made the following statement:

"If you see someone running down the sidewalk in our neighborhood and you don't recognize that person, you can assume that person has committed some type of crime. You must act immediately. Do not hesitate for a second. Call 911." Some members of the audience recognized this statement as an example of a. a causal fallacy. b. causal reasoning. c. deductive reasoning. d. a bandwagon fallacy.

Which of the following requires a source credit if used in your speech?

A) Indirect quotations B) Statistics C) Popular opinions D) Common knowledge