Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is 'E'. (Ignore the errors of punctuation, if any).
We must go and congratulate him for his brilliant performance.
We must go
and congratulate him for
his brilliant
performance.
No error
Correct answer is B
and congratulate him on