Step 1: Understanding the Concept:
Nutrients are broadly classified by their function. "Protective nutrients" are those that help defend the body against diseases.
Step 2: Detailed Explanation:
In standard nutritional science, Vitamins and Minerals are primarily known as protective nutrients. They are essential for a strong immune system and prevent specific deficiency diseases (e.g., Vitamin C prevents scurvy). Therefore, option (C) is the most accurate answer in a strict sense.
Step 3: Final Answer:
The Correct Answer is Option C Vitamin.