The principle of the high school was debating whether to pursue the issue any further.
Which of the following corrects an error in the sentence above?

Replace principle with principal is the correct answer. This is correct because a principle is an idea or rule. In this case, the principal (meaning “the most important”) is a person.
Replace debating with debateing. This is incorrect because the final -e rule states, “Drop the final e when adding a suffix that starts with a vowel”.
Replace whether with weather. This is incorrect because whether is a conjunction implying some type of choice, while weather has to do with climate and atmospheric conditions.
Replace further with farther. This is incorrect because further means “in addition”, whereas farther has to do with distance.