Codi is interested in studying about the dolphins. Once he got the chance of visiting sea shore. He observed that the dolphins come periodically on the surface of water. He came up to the following conclusions for that behavior of dolphins. Which one of the following conclusion is true?

• A. Dolphin comes on the surface to see the outside world
• B. Dolphin comes on the surface when it feels boring under the water
• C. Dolphin comes on the surface for breathing
• D. Dolphin comes on the surface so that it remains hiding from its prey and catch them easily
• E. None of these