Evolution does not occur when a population is said to be in equilibrium by the Hardy-Weinberg definition. In the situation above, which of the following does NOT support the claim that evolution will occur in this population?
(A) The situation describes a small population.
(B) Mutations occur in this population.
(C) People do not usually mate randomly.
(D) Natural selection pressures do not exist on this island.

A cruise ship with 500 people on board crashes on a deserted island. They like the island so much that they decide to stay. There is a small number of people on board with red hair, an autosomal recessive trait. Assume that red hair provides no increase in fitness.