Which of the following phrases (I), (II), and (III) given below each sentence should replace the phrase printed in bold letters to make the sentence grammatically correct without changing the meaning of the sentence?

Q. Unless the Court is not infallible, its authority and that of the Constitution will survive only if it remains independent.

(l) Until the Court is not infallible

(ll) While the Court is not infallible

(lll) whereas the Court is not infallible

(a) Only (I)

(b) Only (II)

(c) Only (III)

(d) Both (ll) and (lll)

(e) Both (l) and (ll)