All Algae Photosynthesize Their Own Food, as Plants Do

Multiple Choice

All algae photosynthesize their own food, as plants do. Algae are also widely distributed in bodies of fresh water and in oceans. Because they are so numerous and because they capture energy from sunlight in the food they make, algae are an important source of food for other organisms. Jacquelyn C. Black, Microbiology: Principles and Explorations

A) Argument; conclusion: They capture energy from sunlight in the food they make
B) Nonargument.
C) Argument; conclusion: All algae photosynthesize their own food, as plants do.
D) Argument; conclusion: They are so numerous
E) Argument; conclusion: Algae are an important source of food for other organisms.