So with the dessert tray staring at me all day long , I had no option but to fall into my nasty old habits of feeding my inner fatty . For the curious , Wednesday 's dessert tray definitely trumped Tuesday 's dessert tray . Key lime tart .

Choices:
[I] They 've been having sweets .
[II] None of the above choices .
[III] They 've been having dinner .
[IV] They 've been having breakfast .
Answer the following question: What has the narrator been eating ?

[I]