Based on this dictionary definition which sentence correctly uses the word agony?

Question: Based on this dictionary definition which sentence correctly uses the word agony?
Options:
Answer: The correct answer is option: B) It was agony for Donna to be stuck at home battling the flu while all of her friends went to see her favorite band in concert.
Explanation: Agony is defined as an extreme mental or physical pain or it can also be an intense struggle.
In sentence A, it mentions ''After the agony month...'', but this is grammatically incorrect. It would have to say ''After the agonizing month...'' because ''agonizing'' is used when a situation or event is creating this feeling.
In sentence C, it mentions ''...the crowd cheered in agony.'' A cheer is considered a shout of joy so it can't be done with agony.
In sentence D, it mentions that Matt won the contest and when he found out that he had won, he jumped. This means that he was happy, so it can't be done with agony.
In sentence B, it mentions that Donna is battling the flu, in other words, she is struggling to get better and she is stuck at home while her friends are at her favorite band concert. We can say that Donna was indeed in agony.