Some of the sentences have errors and some have none. Find out which part of a sentence has an error, and the appropriate letter (A),(B),(C) is your answer. If there is no error, (D) is the answer.
$\underset{(A)}{\underline{\text{The accelerating pace of life in our metropolitan city /}}}$
$\underset{(B)}{\underline{\text{has had the tremendous effect/}}}$
$\underset{(C)}{\underline{\text{on the culture and life-style of the people./}}}$
$\underset{(D)}{\underline{\text{No error}}}$