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).
Do not trouble yourself about writing to me unless you are quite in the humour for it.
Do not trouble
yourself about writing to me
unless you are quite
in the humour for it.
No error
Correct answer is D
in the mood for it