particular species of lizard can range in body color from dark brown to light brown. Body color influences how well an individual lizard can hide from predators. The more similar a lizard's body color is to the soil in its environment, the less likely it is to be seen by a predator.

The two graphs below represent two similarly-sized populations of lizards in similar environments that have medium-brown soil.



Suppose an environmental change that causes the soil color to become much different occurs in both environments. Which of the following is true?
A.
Both populations are equally as likely to adapt and survive because both populations exhibit the same level of body color variation.
B.
Population 2 is more likely to adapt and survive than population 1 because there is more variation related to body color in population 2.
C.
The individuals in both populations will adapt within their lifespans to exhibit a darker body color because this will increase their ability to survive.
D.
Population 1 is more likely to adapt and survive than population 2 because there is more variation related to body color in population 1.