Choose the closest paraphrased version after each of the followi

Choose the closest paraphrased version after each of the following sentences or the italicized part.
He was thoughtful all through breaks 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.
【正确答案】：A