If Protease Treatment in Avery, MacLeod, and McCarty's Experiment Prevented

Multiple Choice

If protease treatment in Avery, MacLeod, and McCarty's experiment prevented the transformation of bacteria, what would have been the conclusion of these researchers?

A) RNA is the genetic/hereditary material.
B) DNA is the genetic/hereditary material.
C) Protein is the genetic/hereditary material.
D) Protein and RNA are the genetic/hereditary materials.
E) Protein and DNA are the genetic/hereditary materials.