The statement that DOES NOT support Darwin's concept of natural selection leading to evolution is:
c. Stronger offspring kill weaker members of the species.
While competition can occur within species, this particular statement suggests a direct killing of weaker members specifically by offspring, which is not a central aspect of natural selection as discussed by Darwin. Natural selection is more about how advantageous traits enhance survival and reproduction in a given environment, rather than direct aggression or killing among individuals. The other options all align with the principles of natural selection.