"That" is the relative pronoun because it refers to People, Animal, and Things, defining only.
Answer: The main idea is the point of the paragraph. It is the most important thought about the topic. To figure out the main idea, ask yourself this question: What is being said about the person, thing, or idea (the topic)? The author can locate the main idea in different places within a paragraph. The main idea is usually a sentence, and it is usually the first sentence. The writer then uses the rest of the paragraph to support the main idea.
Fic is the root, in Latin fic means 'make'
