What is the most likely reason the author uses definition as an organizational in paragraph 2?

Question

A To provide background knowledge necessary to understand the article

To describe the numerous types of aquatic plants discussed in the article

© To explain why people have used seaweed throughout history

To show how seaweed provides food to both humans and animals

In the story seaweed the secret ingredient

Answer 1

D, To show how seaweed provides food to both humans and animals