Spot the Error in the sentence:
My sister-in-law who lives in Mumbai have, come to stay with us

(A) My sister-in-law who
(B) lives in Mumbai
(C) have come
(D) to stay
(E) with us

Choose the correct answer from the options given below :

(C) only

The error in the sentence "My sister-in-law who lives in Mumbai have come to stay with us" is in the verb "have come". The verb should be "has come" because the subject of the sentence, "My sister-in-law", is singular.

Therefore, the answer is OPTION 2 (C) only.