Directions: The given sentence is divided into four parts A, B, C, and D. Choose the part that contains an error as your answer. If the sentence is error-free, mark 'No error' as your answer.

The surgeon had to hold off on the intricate procedure (A)  due to unforeseen complications, but he managed to (B) pull through by relying on his years of experience (C) and adapting his approach to the evolving medical situation. (D)