Which of the Following Is a Characteristic of Home Water

Which of the following is a characteristic of home water treatments?

A) Activated carbon filters are effective in removing chlorine
B) Most home filtration systems are highly efficient at removing virtually all types of contaminants
C) Boiling the water is effective at removing all organic chemicals as well as killing microorganisms
D) Most home filtration systems combine the processes of heavy metal removal,killing of microorganisms,softening of the water,and addition of enhancers