Watson and Crick proposed the double helix model of DNA based on several evidences. Which one is not the evidence. ( )
选项：

A:DNA might have a helical structure.
B:X-ray diffraction photos of DNA
C:DNA nucleotide contains a five-carbon sugar, deoxyribose, attached to one of four bases: adenine, guanine, cytosine, or thymine
D:DNA might might have hydrogen bonds.