What is biotechnology, and what are some examples from the ocean?

Marine biotechnology may include techniques such as bioprocessing, bioharvesting, bioprospecting, bioremediation, using bioreactors etc (so called process biotechnology techniques); aquaculture/fisheries; gene, protein, or other molecule based techniques; while applications may include: health, food, cosmetics

i think that the best answer would be c.

tell me if im wrong : )

the answer would be d : p