1. **State the problem:** Determine which rule represents the relationship between MSU-Balindong Community High School and its School ID 600313. 2. **Understand the problem:** The school has a unique School ID, and other schools have their own unique IDs. This means each school corresponds to exactly one School ID. 3. **Recall definitions:** - One-to-one: Each element in the domain maps to a unique element in the codomain, and vice versa. - One-to-many: One element in the domain maps to multiple elements in the codomain. - Many-to-one: Multiple elements in the domain map to the same element in the codomain. - Many-to-many: Multiple elements in the domain map to multiple elements in the codomain. 4. **Apply to the problem:** Since each school has a unique School ID, and each School ID corresponds to exactly one school, this is a one-to-one relationship. 5. **Final answer:** The rule that represents the given statement is **one-to-one**. **Answer: A. one-to-one**