In which way does genetic variation within a population help to ensure the survival of a species in response to the environment in which they live? A.
Genetic variation causes the members of the population to require a different source of food.

B.
Environmental changes which affect one organism within the population may not affect others.

C.
Genetic variation occurs when environmental conditions remain stable for an extended period of time.

D.
Environmental changes decrease genetic variation so that the population experiences fewer adaptations.

b

Explanation:

if the genes are varied some will have different traits than others, which means that some members of the population might not be affected by something that other members would be affected by

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.

thinking it would be d not too sure but i think it's right