Consider the following statements regarding groundwater pollutants :1. Most of the groundwater are generally non-alkaline2. A moderate amount of fluoride about 0.6 mg/I to 1.5 mg/l in drinking water, would help in good development of tech3. Natural waters do not have dissolved mineral matter in themWhich of the above statements is/are correct?

Consider the following statements regarding groundwater pollutants :1.

1.	Consider the following statements regarding groundwater pollutants :1. Most of the groundwater are generally non-alkaline2. A moderate amount of fluoride about 0.6 mg/I to 1.5 mg/l in drinking water, would help in good development of tech3. Natural waters do not have dissolved mineral matter in themWhich of the above statements is/are correct?
A.	1 only
B.	2 only
C.	3 only
D.	1, 2 and 3
Answer» C. 3 only