Please do not . . . . . . . . the offer made by the Chairman.

The correct answer is C. refuse.

Refute means to deny or contradict something. In this case, the Chairman has made an offer, and the speaker is asking the listener not to refuse it.

Refrain means to hold back or abstain from doing something. In this case, the speaker is not asking the listener to refrain from doing anything, but rather to accept the Chairman’s offer.

Refuge means a place of safety or protection. In this case, the speaker is not asking the listener to seek refuge from the Chairman’s offer, but rather to accept it.

I hope this helps!