Answer: Option (D) is the correct answer.
Explanation:
Water table is defined as the upper most level of water that is present under the ground surface where there is permanent separation of soil or rocks with water.
Water table is maintained through a natural process as when it rains then the rain water seeps through the ground and reaches below the ground.
Water table is also known as ground water table.
Therefore, we can conclude that the water table is the upper surface of underground water.
