Study the given diagrammatic representation of Griffith's experiment to demonstrate transformation in bacteria :
 

Select the option which is incorrectly representing the experiment:

Streptococcus pneumoniae has virulent S (Smooth) and non-virulent R (Rough) strain S strain when injected in mice causes pneumonia, causing death of the organisms.
R strain do not cause death of mice.
Heat killed S strain do not cause death of mice.
Heat killed S and R causes death of mice.

S strain kills the mice.