You are likely to see a connotation used in both advertisement and also some university lectures. If only one answer is permitted, B is the best answer.
They both contain a Nucleus, the part of the cell designed to dictate the cells operations.
The Hershey–Chase experiment was based on a bacteriophage T2 (a virus), to that DNA is the genetic material. Bacteriophage T2 attacks bacterium and makes its copies. Based on the experiment, Hershey and Chase deduced that it is the DNA of virus enters bacteria to make virus copies. To trace viral DNA, Hershey and Chase label DNA with ³²P (radioisotope of phosphorus) because phosphorus is not present in most of the proteins.