According to the paragraph 4, what is the lesson t...

Câu hỏi: According to the paragraph 4, what is the lesson the father wanted to impart to his children?

A. Moral lessons can come from the most unexpected and ordinary things.

B. No matter what season it is outside, you always have to cherish it.

C. The old age of humans is similar to the winter of nature.

D. Persevere through the difficulties and better times are sure to come sometime sooner or later.