In the following question, the given sentence has four parts marked P, Q, R, and S. Choose the part of the sentence with the error and mark as your answer. If there is no error, mark 'No error (S)' as your answer.
The behaviour of resident spiders (P)/ towards pirate spiders and their own prey (Q)/ are quite different. (R)/ No error (S)

Correct option is C

Option (c) contains an error.
Error Identification: The plural verb "are" is incorrect when the subject is "The behaviour," which is singular.
Grammatical Explanation: The subject of the sentence "The behaviour" is singular and requires the singular verb "is" instead of "are."
Corrected sentence: "The behaviour of resident spiders... is quite different."
Explanation: The verb must agree with the subject in number. Since "behaviour" is singular, the verb must be singular as well.