The correct answer is C. Freshwater
Step-by-step explanation:
Renewable resources include those that replenish naturally in a short time and also those that rarely ran out as they exist in large amounts. Freshwater along is considered as a renewable resource not only because it exists in large amounts all around the world but because it is naturally replenished all the time through processes such as the water cycle. Also, despite petroleum, diamonds or iron ore are produced by nature this process takes a lot of time and therefore the availability of these resources is limited and does not replenish in a short time.