【阅读理解】I was searching for just the right word to describe this book; a word that describes something that is perhaps somewhat sad, but in a good way. I couldn’t find quite the right word, but I do know the feeling.

This book does make me feel a bit sad. Sad for the way that childhood passes so quickly, sad for days that go by, faster than we’d like them to. But it also makes me feel the sweetness of these things and helps me remember that childhood imagination, freedom and joy are things that we can carry with us still, long after our days as children have passed.

Which of the following is true about the author’s feeling of the book?

　　A、It makes him feel sad for his childhood is sad.

　　B、It makes him feel sad because he didn’t remember his happy childhood.

　　C、He couldn’t describe the book, for he doesn’t know the feeling.

　　D、He realizes that childhood imagination, freedom and joy are things that he can carry even when he is an adult.