Which of the following options should replace the underlined phrase to make the sentence grammatically correct? If the sentence is already correct, choose "No correction required."
The teacher asked her students to read the novel over the weekend and to be prepare to discuss it in class on Monday.
1
to prepare for discussing it in class on Monday
2
prepared discussing on Monday
3
to be preparing discussing on Monday
4
to be prepared to discuss it in class on Monday
5
No correction required