He went back on his promise to vote for me. A. withdrew B. forgot C. reinforced D. supported

withdrew
forgot
reinforced
supported

The correct answer is A. withdrew.

To withdraw is to take back or cancel something that has been said or done. In this case, the person who promised to vote for you has taken back their promise.

B. forgot is incorrect because it does not mean to take back or cancel something that has been said or done. It means to be unable to remember something.

C. reinforced is incorrect because it means to make something stronger or more secure. In this case, the person who promised to vote for you has made their promise weaker or less secure.

D. supported is incorrect because it means to give help or encouragement to someone or something. In this case, the person who promised to vote for you has not given you help or encouragement.