The Most Important Experimental Result That Suggested to Watson and Crick

Multiple Choice

The most important experimental result that suggested to Watson and Crick that DNA was in the form of a helix was

A) the finding of Chargaff that DNA always had equal amounts of A and T and equal amounts of G and C.
B) Griffith's results with transformation.
C) the discovery that DNA is wound around histone proteins.
D) X-ray data from Rosalind Franklin .
E) understanding DNA replication.