Refer to the Figure

Refer to the figure. The figure shows the results of an experiment where wild type and obligate selfing (i.e. self-fertilizing) C. elegans nematode worms were reared across many generations, with and without their lethal bacterial pathogen, Serratia marcescens. Which of the following is not a reasonable inference from this figure?

A) C. elegans populations with very limited genetic variation are more vulnerable to pathogens.
B) Outcrossing may be advantageous only under particular conditions.
C) After 30 generations, mortality rate from S. marcescens for a treatment "Wild type (no bacteria) " would probably be around 0%.
D) After 30 generations, mortality rate from S. marcescens for a treatment "Wild type (no bacteria) " would probably be around 100%.