In Griffith's Experiments, When Heat-Killed S Strain Pneumococci Were Injected

Multiple Choice

In Griffith's experiments, when heat-killed S strain pneumococci were injected into a mouse along with live R strain pneumococci,

A) DNA from the live R cells was taken up by the heat-killed S cells, converting the latter to R cells and killing the mouse.
B) DNA from the heat-killed S cells was taken up by the live R cells, converting the latter to S cells and killing the mouse.
C) proteins released from the heat-killed S cells killed the mouse.
D) RNA from the heat-killed S cells was translated into proteins that killed the mouse.
E) there was no result.