In the study of rapid adaptive evolution through exposure to strongly selective environments, the energy cost to an organism that emerges as the fittest is that it is

A) slowed by the demands of the stress response.
B) slowed as a result of decreasing respiratory activities.
C) slow growth as a result of impaired DNA replication.
D) uncontrolled growth due to an inability to regulate mRNA translation.
E) uncontrolled growth due to an inability to regulate binary fission.