Answer:
Absolute threshold
Step-by-step explanation:
When Ann went to her doctor, he gave her a hearing test. During the test, the doctor presented tones to Ann through earphones. The tones varied only along the loud-soft dimensions (from very loud to very soft). The doctor asked Ann to raise her hand whenever she heard a sound. The doctor was testing Ann's absolute threshold .The minimum intensity of physical stimulation required to produce any sensation at all in a person is the absolute threshold