Doctor!

[gmat_perfect]

A patient accusing a doctor of malpractice will find it difficult to prove damage if there is a lack of some other doctor to testify about proper medical proce¬dures.

(A) if there is a lack of some other doctor to testify
(B) unless there will be another doctor to testify
(C) without another doctor's testimony
(D) should there be no testimony from some other doctor
(E) lacking another doctor to testify

[spoiler]OA: C[/spoiler]

[TheGmatTutor]

You didn't underline the sentence, but it looks like C.

[uwhusky]

Please be more specific than just providing an answer, which doesn't really help the readers or the person who posted the question.

[apex231]

(A) if there is a lack of some other doctor to testify
(B) unless there will be another doctor to testify
(C) without another doctor's testimony
(D) should there be no testimony from some other doctor -> should represents obligation.
(E) lacking another doctor to testify

C wins.