How are traits which are not
 beneficial to a living organism
 removed from its gene pool?
 A. Recessive traits, or traits that are
 inferior are selectively overpowered by the
 superior traits.
 B. The recessive traits, or traits that are
 inferior, are removed by DNA substitution.
 C. Organisms with inferior traits will die
 off and will not be able to pass those traits
 to offspring.