If Hershey and Chase Had Used Radioactive Oxygen in Their

Multiple Choice

If Hershey and Chase had used radioactive oxygen in their experiments instead of phosphorus and sulfur, what results would they have likely obtained?

A) They would have observed a radioactive signal in the pellet only.
B) They would have observed a radioactive signal in the liquid only.
C) They would have observed a radioactive signal in both the pellet and the liquid.
D) They would have not observed radioactivity anywhere.