Personally I think answer D would best summarize everything up. If it isn’t D, most definitely is A.
The opening chapter of the book Frindle focuses on introducing us to the main character Nick Allen, an imaginative boy who likes to brighten up his school by figuring out unique and unusual ideas, an example would be that in 3rd grade, he turned the classroom into a tropical island by making paper palm trees and having everyone wear beach clothes.
An unabridged English-language dictionary is a shortened dictionary for everyday use, and it is the dictionary that most people have in their homes and offices.