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 intricate dance between nature's cyclical rhythms (A) and humanity's ceaseless quest for progress poses not only philosophical dilemmas (B) rather practical challenges, as the delicate balance between conserving ecological sanctity (C) and fostering technological innovation becomes increasingly tenuous. (D)