The oceans cover approximately 70% of Earth's surface and also contain about 97% of Earth's water supply. This enormous amount of space provides habitats for a large number of diverse organisms. However, organisms thrive in different areas. Which statement below best describes the distribution of life in the ocean?

A. All species of aquatic organisms have adapted to all depths of the ocean and are distributed throughout.
B. The upper depths of the ocean are teeming with large organisms that need little sunlight and are not dependent on autotrophs.
C. Organisms which are able to survive in the deepest depths of the ocean must have adaptations that allow them to live in cold dark environments under a lot of pressure.
D. Species which thrive in mid-ocean areas are those which are adapted to a warm environment rich in oxygen and photosynthetic