Which of the following statements are correct as regards aquifer characteristics?1. The storage coefficient is the volume of water released from storage from the entire aquifer due to unit depression of Piezometric head.2. The storage coefficient is the same as the specific yield for water table aquifer.3. Both the aquifer constants, viz. storage coefficient S and Transmissivity T are dimensionless numbers.

• A. 1 only
• B. 2 only
• C. 3 only
• D. 1, 2 and 3