Which of the Following Best Illustrates Behavioral Mutualism

Which of the following best illustrates behavioral mutualism?

A) Fruit seeds pass through a consumer's digestive system and are moved to a location distant from the parent plant.
B) Pollen from one plant is carried to another.
C) Small fish called cleaner wrasse remove parasites from the mouth and gills of predatory fish.
D) Infected individuals experience diarrhea that releases infectious organisms into the environment.