William is making a presentation on competition among marine life. What would he MOST likely include on a slide to demonstrate this?
A. an image of a shark with a barnacle attached to it swimming in the ocean
B. an image of a wolf and moose and how their populations decline with water contamination
C. an image of a clownfish and a largemouth bass sharing food sources
D. an image of a sea sponge and coral showing how they are both trying to capture the same water resource