Write a question about the following article.

Luke 's fish died . Just before I was going to put the boys down for the evening , Wendy came upstairs and mentioned to me in a somber whisper , " Luke 's fish died . Should we tell him now , or should we wait till the morning ? " I could n't stand the idea of my son sleeping peacefully while his fish was belly up in the tank , so I said she better go tell him right away .

Question:
Why is Luke in such a sour mode ?
OPT: - Luke has experienced the loss of a dog .; - None of the above choices .; - Luke has experienced the loss of a pet .; - Luke has experienced the near loss of a pet .;