Which Description Is an Example of Character Displacement

Multiple Choice

Which description is an example of character displacement?

A) Early in its growing season, scarlet gilia produces red flowers that attract hummingbirds; later in the season, it produces white flowers that attract hawk moths.
B) Large herbivores usually eat a wide variety of plants to minimize their exposure to the toxins of any one plant.
C) Finches in the Galápagos Islands are smaller on islands where bees are present, because bees compete with the finches for cactus nectar.
D) A species of butterfly eaten by bird predators evolves the color patterns of another butterfly species that is toxic to the predators.
E) Desert ants prevent honeypot ants from feeding, by dropping stones into the honeypot ants' nest openings.