Answer:
C. Potassium
Explanation:
Potassium is an extremely essential mineral and dietary supplement. It assists with muscle contractions, nerve functions, maintaining a regular heartbeat, and more. It is recommended that a normal adult eats 3,500 to 4,700 mg a day.
Foods that are high in potassium include: spinach, potatoes, fish, mushrooms, peas, cantaloupe, cucumbers, bananas, apricots, grapefruit, prunes, raisins, and broccoli.
Therefore, the correct answer is C: potassium.