Which of the Following Is an Example of a Question

Multiple Choice

Which of the following is an example of a question that is answered using the scientific method?

A) When asked whether or not violent video games have any impact on a gamer, a psychologist replies that there is empirical evidence that shows a change in the gamer's physiology.
B) When asked whether or not mood influences prosocial behavior, a psychologist replies that his gut feeling says it does.
C) When asked if addiction is a disease or a choice, Dr. Smith replies that he knows many addicts and he feels that they have a disease.
D) When asked if an old dog can be taught new tricks, Rick replies, "I taught my 10-year-old shepherd to fetch a ball, so yes, you can teach an old dog new tricks."