49.
Your Answer is
Correct Answer is B
Explanation
In item B there is an adverbial of location, to do. The meaning of this sentence: Most people go there to attend a performance. However, some people who may be architecture lovers go there to admire the majestic buildings themselves.
Item A/D: The error lies in the two complete sentences before and after without punctuation,
Item C: The error lies in the whose leading clause can only be used as the object in the clause.