What is the outcome when mice are injected with only the R (rough) strain of Streptococcus pneumoniae in the Griffith experiment?

The bacteria that Griffith experimented with were termed "R"and "S"bacteria because:

In his transformation experiments, what phenomenon did Griffith observe?

In Griffith's classical experiments on transformation, which of the following scenarios led to a dead mouse? Select all that apply.

a. Infecting the mouse with a living strain of S. pneumoniae that makes a capsule

b. Infecting the mouse with a heat-killed strain of S. pneumoniae that makes a capsule

c. Infecting the mouse with a heat-killed strain of S. pneumoniae that makes a capsule and a living strain of S. pneumoniae that cannot make a capsule

d. Infecting the mouse with a living strain of S. pneumoniae that cannot make a capsule