14. When books are arranged in correct order on the shelves by call number, which of the following call

numbers will be first?

A. D 839 .G42 2004
B. D 839 .G3 1987
C. DA 546 .L74 1986
D. DE 82 .A49 2006
HELP? i know its not B

If it's not B, I have no idea:

http://library.amnh.org/research-tools/tips-tutorials/library-congress-call-numbers