Before Watson and Crick Built Their DNA Model, the American

Before Watson and Crick built their DNA model, the American chemist and Nobel laureate Linus Pauling proposed a triple-helix model for DNA.What evidence convinced Watson and Crick to reject this model for the double-helix model?

A) Franklin's X-ray crystallography
B) Chargaff's observations of base pairing
C) Avery's studies of DNA as the transforming agent
D) The Hershey and Chase blender experiment
E) Studies examining the stability of DNA