Lola Is Getting Her Blood Pressure Tested at a Machine

Lola is getting her blood pressure tested at a machine in the local supermarket. The first reading is 135/90, which she knows is high. She then sits for a few minutes taking slow and deep breaths, and when her BP is taken again, it is 120/78. This process of getting control over involuntary physiological processes is part of __________.

A) activation synthesis
B) rTMS
C) progressive desensitization
D) biofeedback training