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).
The method suggested in the lecture enables a student to learn more quickly and to have remembered for a longer period of time.
The method suggested in the lecture
enables a student to learn more quickly
and to have remembered for a longer period of time.
No error.
Correct answer is C
and to remember for a longer period of time