The Textbook Distinguishes Between a Challenge and a Threat

Multiple Choice

The textbook distinguishes between a challenge and a threat. Which one of the following is most likely to be a threat rather than a challenge?

A) You think you can probably make the basketball team, but only if you practice every day at home.
B) You are required to take a college course in nuclear physics, even though you failed basic physics in high school.
C) You have invited a friend to dinner and are trying a recipe you've never tried before.
D) You're asked to climb up a twenty-foot rope hanging from the ceiling. You've climbed ten feet before, but you've never climbed twenty feet.