How Could the Hershey and Chase Experimental Procedure Be Re-Designed

How could the Hershey and Chase experimental procedure be re-designed to support the hypothesis that RNA rather than DNA was the transforming agent?

A) Replace T2 bacteriophage with an RNA virus.
B) Replace Escherichia with an RNA virus.
C) Use ³⁵S to label an RNA virus and ³²P to label a DNA virus.
D) Extract RNA from Escherichia and mix it with the T2 bacteriophage.
E) Use ³⁵S and ³²P to label the same components of an RNA virus and T2 bacteriophage,then add both viruses to Escherichia cells.