Based on the results of research on humor, under which condition would you expect people to laugh the loudest at a joke?

A) When at an otherwise boring party
B) After finishing a five-mile race
C) After watching an anxiety-provoking film
D) When relaxing

Research on humor suggests that people are more likely to laugh louder at a joke after experiencing tension or anxiety, as humor can serve as a relief mechanism. Watching an anxiety-provoking film creates a buildup of tension, which can be released through laughter, making the joke seem funnier or more relieving in contrast to the prior emotional state.