You are building a water treatment facility．Routine tests reveal that there are contaminants in the water but that they have an extremely low risk for causing any sickness．As the project manager，you should______．
A．inform the public that a detailed examination has been ordered to determine the extent to which the problem exists
B．do nothing because there is extremely low risk for sickness except for some effects on small children and the elderly
C．tell the public there is no problem，except for small children and the elderly who need to boil the water before drinking
D．educate the public about the advances on water treatment technology and the industry efficiency and safety record
