In the Experiments of Griffith, the Conversion of Nonlethal R-Strain

In the experiments of Griffith, the conversion of nonlethal R-strain bacteria to lethal S-strain bacteria

A) was due to genetic mutation.
B) was due to transformation.
C) proved that proteins are the genetic material.
D) could not be reproduced by other researchers.
E) was similar to experiments performed by Watson and Crick.