Biofeedback is a control (A) that allows individuals to monitor and technique (B) physiological functions like heart tension (C), blood pressure, and muscle rate (D).

Explanation

Among the highlighted words, all are incorrectly placed. The correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct is A-B & C-D. The word “control” should be replaced with “technique” and “tension” should be replaced with “rate” as the given sentence is saying that biofeedback is a method enabling individuals to observe and regulate physiological functions such as heart rate, blood pressure, and muscle tension. So, the correct sentence after rearrangement of words would be, “Biofeedback is a technique (B) that allows individuals to monitor and control (A) physiological functions like heart rate (D), blood pressure, and muscle tension (C).”