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).
At last the rain ceased and the sky was cleared by clouds and lightning.
At last the rain ceased
and the sky was
cleared by clouds
and lightning.
No error
Correct answer is C
cleared of clouds