In the context of behavior change, which of the following scenarios exemplifies a perceived barrier?

a. a man believing that dietary change would not reduce his risk of a heart attack
b. a family without health insurance not getting their children vaccinated
c. a woman suffering from stress caused by the recognition of her risk of getting breast cancer
d. an adolescent girl resorting to smoking to reduce her nervousness in social situations

A. a man believing that dietary change would not reduce his risk of a heart attack

Explanation:

A perceived barrier is an individual's estimation of how challenging social, personal, environmental, and economic obstacles are to reach a desired goal. This barrier prevents the person to engage in health-promoting behavior, therefore the example that best exemplifies this barrier is a man believing that dietary change would not reduce his risk of a heart attack, where the perceived barrier is the dietary change not helping and the desired goal is to reduce the risk of a heart attack.

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