Choose the closest paraphrased version after the following sentence or the italicized part.
Sometimes I think how grateful I would be today if I had learned more back then about what really matters.（ ）
A、
I would be happy now if I had learned more about great historic events.
B、
I would be satisfied today if I had learned more about things really important.
C、
Since I have learned how to deal with difficulties, I feel content with my education.
D、
Since I have learned more than other students, I feel thankful to my school teachers.
【正确答案】：B
【题目解析】：
句子释义：有时候，我想那时要是能多学点真正重要的东西，今天我会多么地心存感激。
B选项“如果我能更多地了解一些真正重要的事情，我今天会感到满意的”符合句意。