The hospitalization was prolonged because of the absence of any good choices for oral medications to treat his UTI.

Question

1.This is a run-on that requires a comma before the word because.
2. This is a run-on that requires a semicolon before the word because.
3. This is a fragment that can be fixed by adding a verb after hopitalization.
4. This is a fragment that requires a subject.
5. The sentence is fine as it is.
Answer:
NOT # 3 & #4
I don't think it is two or more sentences.
MY Answer is #5.

Answer 1

I agree. :-)