Read the sentence below to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Choose the option with that part as your answer. If there is no error, choose 'D' as your answer. (Ignore the errors of punctuation, if any).
There was very heavy rain last night, and the rivers have overflown their banks causing severe hardship to the people living by them.
There was very heavy rain last night,
and the rivers have overflown their banks
causing severe hardship to the people living by them.
No error.
Correct answer is B
and the rivers have overflowed their banks