Considering the Textbook's Definitions of Threat and Challenge,identify the Situation

Multiple Choice

Considering the textbook's definitions of threat and challenge,identify the situation below that is most likely to pose 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're asked to climb up a 20-foot rope hanging from the ceiling. You've climbed 10 feet before,but you've never climbed 20 feet.
C) You've invited a professor to dinner and are trying a recipe you've never tried before.
D) You are required to take a college course in nuclear physics,even though you failed basic physics in high school.