For an unconfined aquifer, the specific yield is 20%, specific retention is 15%, and  coefficient of permeability is 35 m/day. Consider the following statements: 
1) The porosity of the aquifer is 35%. 
2) The transmissibility is 35 m2 /day. 
3) The volume of water lost from storage per metre drop in the water table per 100 km2 area of the aquifer is 20 million m³. 
Which of the above statements are correct?