A Patient Is Undergoing a Maximal Exercise Test in the Laboratory.During

A patient is undergoing a maximal exercise test in the laboratory.During the third stage of the treadmill maximal exercise test,the therapist notes the patient appears to be mildly confused and is less coordinated walking on the treadmill.Which of the following should be the next action of the therapist?

A) The therapist should straddle the treadmill and provide close contact guard of the patient to prevent a fall.
B) The therapist should immediately obtain a heart rate and blood pressure reading.
C) The therapist should terminate the test.
D) The therapist should ask the patient if he can continue the test.