## **Core Concept**
The question tests understanding of behavioral therapy techniques, specifically those used in the treatment of anxiety disorders like acrophobia (fear of heights). The scenario describes a process where the patient is exposed to the feared situation (heights) in a controlled manner until the anxiety diminishes.

## **Why the Correct Answer is Right**
The technique described in the scenario is known as **exposure therapy**, a form of behavioral therapy used primarily for anxiety disorders. It involves the patient being exposed to the feared object, situation, or activity in a controlled and gradual manner, without the use of avoidance or escape behaviors. The goal is to reduce the anxiety response over time through habituation. In this case, the man is gradually exposed to heights (the observation tower of the Empire State Building) over several sessions, leading to a decrease in his fear response.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is blank and cannot be evaluated.
- **Option B:** This option is blank and cannot be evaluated.
- **Option D:** This option is blank and cannot be evaluated.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **exposure therapy** is based on the principle of habituation, where repeated exposure to the feared stimulus in the absence of negative consequences leads to a decrease in the anxiety response. This technique is highly effective for specific phobias, such as acrophobia, and is often considered a first-line treatment.

## **Correct Answer:** C. Exposure therapy.