为自己加油

Choose the closest paraphrased version after the following sentence or the italicized part.

He was thoughtful all through breakfast-time.（ ）

A.
He was deep in thought all the time he was having breakfast.
B.
He was very considerate of others while having breakfast.
C.
He hit upon a wonderful idea while having breakfast.
D.
He considered all the possible things at breakfast.