In early experiments with DNA polymerase I, what evidence convinced investigators that the original unlabeled DNA in the reaction mixture served as the template for the newly made DNA?

A)The new DNA had the same base composition as the original unlabeled DNA.
B)The new DNA had a variable base composition.
C)The new DNA had a triple helix.
D)The new DNA and the old DNA were made of the same elements.
E)The new DNA was equally stable.