When a Mixture of Debris from Killed Virulent Bacteria and Live

Multiple Choice

When a mixture of debris from killed virulent bacteria and live nonvirulent bacteria are injected into mice:

A) the mice are killed because the virulent bacteria are revived.
B) the mice survive because none of the living bacteria are virulent.
C) the mice survive for a period of a few weeks and then die from an unrelated illness.
D) half the mice are killed and the other half survive.
E) the mice are killed because the nonvirulent bacteria are transformed into virulent bacteria.