You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Example input: Category: HOMOPHONIC PAIRS 
Clue: It's a notation on a percussion store to clash
Example output: cymbal symbol
Example explanation: "Cymbal" and "symbol" both have the same pronunciations but different meanings, hence they are homophonic pairs. A symbol is the notation and a cymbal is a percussion instrument that clashes and rings.
Q: Category: OBSTACLES 
Clue: An obstacle that you jump over metaphorically to attain a goal, or what Felix Sanchez jumps over for real
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
a hurdle