Identify the error in the following sentence: (a) The mime show attracted (b) a huge audience despite the high price of tickets (c) which defied the purpose of the public event. (d) No error.

All three underlined parts are grammatically correct and contextually consistent. 'The mime show attracted' uses correct subject-verb agreement. 'A huge audience despite the high price of tickets' is grammatically sound, with 'despite' correctly used. 'Which defied the purpose of the public event' is a proper relative clause. Hence, there is no error in the sentence.