What, if anything, is wrong with the following sentence.

Question

To be fit, you should get enough sleep, exercise regularly, and eat a healthy diet.

a. Properly constructed sentence
b. Comma splice
c. Lacks parallel parts
d. Unclear pronoun

This is a properly constructed sentence. It has parallel parts, and there is no comma splice. The pronoun reference is clear.

However, in formal writing, we don't use the word "you." I assume this is not to be used in a formal paper.