Hershey & Chase (1952) showed that the transmission of DNA by a bacteriophage to a host cell led to the production of progeny bacteriophages. What did this confirm?

A) DNA is the hereditary material.
B) Viruses can infect bacteria.
C) Phage genomes can integrate into a bacterial genome.
D) Phages inject their genome through the cell envelope.
E) Various host molecules can serve as a phage receptor.