Answer :

To determine how much fluid a student should drink for every pound lost during exercise, we analyze the given options and match them to the correct fluid intake range.

From our calculations, it is confirmed that the appropriate fluid intake per pound lost during exercise ranges from 16 to 20 ounces. Comparing this to the given options:

- 12-18 oz.
- 16-20 oz.
- 18-24 oz.
- 22-26 oz.

The range that correctly matches our calculations is:

16-20 oz.

Therefore, the student should drink 16-20 oz. of fluid for every pound lost during exercise.