(A) She was able to give a ______ explanation...
-> credible (believable)
(A) - (III)
(B) The Rockland Hospital ______ with AIIMS...
-> collaborated (worked together)
(B) - (I)
(C) ...yet her efforts ______.
-> creditable (praiseworthy)
(C) - (IV)
(D) ...by ______ their diagnosis with several tests.
-> corroborating (supporting with evidence)
(D) - (II)
Correct Match: (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
Tip: Check word meanings carefully — "credible" means believable, while "creditable" means deserving praise.