Options are: A. grain; B. nutrient; C. sponges; D. Energy.; E. sea vents; F. sodium; G. Energy; H. fungi;
Given those answer options, answer the question: Fact 1: Sponges are a source of food for many species of fish. Fact 2: Fish and other marine animals abound here. Given the two facts above, marine animals find these to be a great source of food:?
A:
C.