Which of the Following Situations Is Most Likely to Be

Which of the following situations is most likely to be associated with the development of a panic attack?

A) Al was out walking his dog when another dog barked loudly.
B) When Al was four years old, he almost drowned at the beach.
C) Al misinterpreted a sudden increase in his heart rate as evidence of a heart attack.
D) Al feels constantly on edge as a result of a long list of worries at work and at home.