The statement that DOES NOT support Darwin's concept of natural selection is:
c) Stronger offspring kill weaker members of the species.
While competition can occur among individuals, this statement suggests a direct and intentional action (killing) by offspring, which is not a fundamental concept of natural selection. Natural selection is more about differential survival and reproduction based on inherited traits rather than active predation or killing among members of the same species. The other options (a, b, and d) align with the principles of natural selection, including overproduction, the accumulation of favorable traits, and survival based on fitness in changing environments.