Answer:
Personal opinion
Step-by-step explanation:
In my opinion, I would do 100 doses for marker B. I wouldn't wish to waste them on people who have a 90% chance of dying with it. At most, one or two would survive if you give all 150 genetic A markers a dose, so its even less with only 100. This answer is meant to be your own personal opinion on the matter. (unless its meant to be a probability check)