Choose the sentence that best conforms to the rules of revising and editing.
Before a student should expect a professor or a teacher to notice his effort they should work
diligently.
Before a student should expect a professor or a teacher to notice his effort, they should work
diligently.
O Before a student should expect a professor or a teacher to notice his effort, he should work diligently.
O Before a student should expect a professor or a teacher to notice his effort he should work diligently.
Before a student should expect a professor or a teacher to notice his effort they should work
diligently.
Before a student should expect a professor or a teacher to notice his effort, they should work
diligently.
O Before a student should expect a professor or a teacher to notice his effort, he should work diligently.
O Before a student should expect a professor or a teacher to notice his effort he should work diligently.