Because every life has potential. Every human being has the ability to contribute something great to this world and when you drag yourself through the mud you just make it harder to find that potential. Trust me life is hard, but realizing that you have to potential makes me wants to continue and try to unlock it.
Control: all roaches in the other group
Independent: dioxin
Dependent: whether they live or die
Data: the 45/100 dead
Both C and D because it’s not ethical
They might be more careful with they're word in order not to anger the child, or patient.