George Would Like to Quit His Nail-Biting Habit

George would like to quit his nail-biting habit.He is thinking about seeing a hypnotist to help him.As George's friend,what information would you share to help him make an educated decision?

A) At minimum,hypnotists are required to hold an associate's degree.
B) There is no credible evidence to suggest that hypnotism is effective.
C) There are many legitimate uses of hypnosis in therapy,and there are legitimate therapists who use the technique.
D) Because hypnotists are required to have advanced degrees,their services are very expensive.