Write a question about the following article.

Last Thursday was my 2nd DD 's birthday . She had requested an angel food cake for her birthday cake . I got home from work , mixed it up and tried to preheat the oven . Five minutes later , I was wondering why the oven was still not up to temperature .

Question:
Why is the narrator spending so much time baking ?
pick from the following. A. It is for work . B. It is for a friend . C. It is for a class . D. It is for personal consumption .