Final answer:
Annemarie was delighted with her breakfast of oatmeal, milk, cream, and butter because such foods were rare due to rationing during the time period she lived in.
Step-by-step explanation:
Annemarie was so happy to have oatmeal, milk, cream, and butter at breakfast because she hasn't eaten this type of breakfast lately due to the rations during that historical period. Items like milk and butter were scarce and strictly rationed, so having a full, unrestricted breakfast with these items was a rare and treasured experience. The satisfaction of enjoying such a meal reflects the hardship of the times and makes ordinary food seem extraordinary and luxurious.