Use reasoning to lead to the answer of the following question:
The work was pure math. It couldn't be what to practical applications?
Options:
- contaminated
- dirty
- smoothed
- corrupt
- applied
 Reasoning process:

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
Pure math is not applied everywhere. Work of pure math couldn't applied to a practical application. Therefore, the final answer is applied.