Which statement correctly explains a symbiotic relationship?

A
Mutualism is a relationship in which intestinal bacteria produce Vitamin K in humans.

B
Parasitism is a relationship in which a spider crab is camouflaged with seaweed on its back.

C
Commensalism is a relationship in which a blood-sucking mosquito feeds on the blood of a dog.

D
Predation is a relationship in which a plant grows taller in bright sunlight than in a shaded area.