Not Used for Making Drinking Water

Sublimation:
Sublimation is the process in which a solid directly changes into a gas without passing through a liquid stage. This process is not used for making drinking water because it is not a practical method for removing impurities from water. Sublimation is commonly used in chemistry for purifying substances, but it is not an effective method for purifying water.

Used Methods for Making Drinking Water

Sedimentation:
Sedimentation is the process of allowing suspended particles to settle in water. This is done by allowing the water to stand for a period of time. As the water sits, the heavier particles settle to the bottom. The clear water is then decanted or siphoned off the top. This is a common method used for making drinking water.

Chlorination:
Chlorination is the process of adding chlorine to water to kill bacteria and other microorganisms. Chlorine is added to water in small amounts to make sure that it is safe for drinking. Chlorination is a widely used method for making drinking water safe for consumption.

Boiling:
Boiling is the process of heating water to its boiling point. When water is boiled, it kills most of the bacteria and other microorganisms that may be present. Boiling is a simple and effective method for making drinking water safe for consumption. However, it may not remove all impurities from the water.

Conclusion
In conclusion, sublimation is not used for making drinking water. Sedimentation, chlorination, and boiling are the common methods used for making drinking water safe for consumption.

The correct option is 'B', because water cannot be sublimated.