bryan88 wrote:Many athletes develop poor fundamentals when trying to compensate from an injury, but they can correct these fundamentals with hard work and dedication.

A)but they can correct these fundamentals - Active
B)but are correctable - ambiguous
C)but they can correct them
D)which (injury) can be corrected
E)but these fundamentals can be corrected - Passive

bryan88 wrote:Many athletes develop poor fundamentals when trying to compensate from an injury, but they can correct these fundamentals with hard work and dedication.

A)but they can correct these fundamentals
B)but are correctable
C)but they can correct them
D)which can be corrected
E)but these fundamentals can be corrected

bryan88 wrote:Many athletes develop poor fundamentals when trying to compensate from an injury, but they can correct these fundamentals with hard work and dedication.

A) Correct. Avoids C's pronoun issue by using "fundamentals" again, and is also more active than E.

B) Creates a sentence fragment; we need a subject after ", but" to go with the verb "are."

C) The use of pronouns "they" and "them" makes the sentence ambiguous.

D) Uses a relative clause, which means it must modify the noun before the comma. It's not the injury that they can correct, so the modifier is misplaced.

E) Passive. You could also say that it's a bit ambiguous: corrected by the athletes themselves? Their coaches? Their trainers?