Answer:
A. carbon, hydrogen, nitrogen, and oxygen
Explanation:
Most of the organism that exist in nature are made up of organic molecule which contains carbon.
The cells contains long chain of DNA which contains nitrogenous bases and thus nitrogen is also to be likely found in that marine organism.
Hydrogen also forms the body attached in the various organic molecules with carbon.
Amino acids, tissues, the air that is breathe contains oxygen and thus is also most likely found.
So, A is the answer.
