Pick up the correct statement from the following:
(A) Perched aquifer is found in unconfined aquifer
(B) The top surface of the water held in the perched aquifer, is known as perched water table
(C) Perched aquifer is formed in unfined acquirer if an impervious layer exists
(D) All the above
(A) Perched aquifer is found in unconfined aquifer
(B) The top surface of the water held in the perched aquifer, is known as perched water table
(C) Perched aquifer is formed in unfined acquirer if an impervious layer exists
(D) All the above