Which of the following are trace elements required by your body for proper health?

• A. Iron
• B. Hydrogen
• C. Carbon
• D. Oxygen

Answer: (A)

Verified step by step guidance

1. Understand the concept of trace elements: Trace elements, also known as micronutrients, are minerals required by the body in very small amounts for various physiological functions.
2. Identify the role of trace elements: These elements are crucial for maintaining health, supporting enzyme functions, and facilitating biochemical reactions.
3. Review the list of elements provided: Iron, Hydrogen, Carbon, and Oxygen.
4. Determine which elements are considered trace elements: Iron is a well-known trace element essential for oxygen transport in the blood and various enzymatic processes.
5. Recognize that Hydrogen, Carbon, and Oxygen are not trace elements: These elements are major components of organic molecules and are required in larger quantities, not classified as trace elements.