Conditions under which natural selection occurs in a beetle population are described in the table below: natural selection description a green and brown beetles exist in a population b brown colored beetles escape predation to live longer which factor contributes to natural selection for each condition? a. condition a and condition b represent competition. b. condition a and condition b represent inherited variation. c. condition a represents inherited variation, and condition b represents differential reproductive success. d. condition a represents differential reproductive success, and condition b represents inherited variation.