In order to help overcome her extreme fear of heights, Michaela is fitted with special motion-sensitive goggles that expose her to a computer-generated, three-dimensional environment that appears very real. She is progressively exposed to views from different heights as she practices relaxation. This technique for treating phobias is called:

This technique for treating phobias is called: virtual reality therapy.

Explanation:

Many therapists use virtual reality therapy to treat people suffering from specific phobias. Virtual reality exposure therapy (VRET) is used during this therapy in safe and controlled manner for the patients to overcome their phobias. A visual immersion device connected to the specially programmed computer is used for treatment to give a simulated experience to the patients.

In the above scenario, Michaela had fear of heights. So she was treated with virtual reality therapy. To keep her relaxed she was given motion-sensitive goggles.

a photo collage of women at work during world war 2

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."