Select the most more appropriate option to fill in the blank.

The principal complied ______the student’s request.

with

The most appropriate option to fill in the blank is with.

The sentence "The principal complied with the student's request" means that the principal agreed to do what the student asked. The word "with" is the most appropriate word to use in the blank because it accurately reflects the fact that the principal agreed to the student's request.

The other options are not as appropriate.

• The word "on" is used to talk about a location. This does not make sense in the context of the sentence, as the principal is not agreeing to a location.
• The word "at" is used to talk about a specific time or place. This does not make sense in the context of the sentence, as the principal is not agreeing to a specific time or place.
• The word "for" is used to talk about a reason or purpose. This does not make sense in the context of the sentence, as the principal is not agreeing to something for a reason or purpose.