The use of ____________requires an individual to respond to ambiguous stimuli.

A) free association
B) dream analysis
C) projective tests
D) hypnosis

Projective tests require an individual to respond to ambiguous stimuli, such as inkblots or vague pictures, and provide interpretations or associations. Free association and dream analysis could also involve responding to ambiguous stimuli, but they are not typically used in a psychological testing context. Hypnosis involves inducing a trance-like state to access deeper levels of consciousness and is not specifically focused on responding to ambiguous stimuli.