${\mathrm{D}}_2\mathrm{O}$ can be used for drinking purposes.

Heavy water has no flavour, colour, or smell. Ionic chemicals are less soluble in heavy water because their dielectric constant is lower than that of regular water.
By repeatedly electrolyzing hundreds of litres of ordinary water until only a few millilitres of water are left, deuterium oxide, or heavy water, is produced.
Fractional distillation can also be used to create heavy water. Since heavy water is less flammable than regular water, fractional distillation is a successful method for making heavy water.
Humans should avoid heavy water at all costs. This is due to the fact that heavy water slows down a variety of bodily reactions. Heavy water does not support life since it slows down vital processes like cell division and mitosis.

Heavy water or ${\mathrm{D}}_2\mathrm{O}$ is water in which hydrogen is replaced by its heavy isotope deuterium. The molar mass of heavy water is 20. Heavy water is harmful to human beings. It slows down various organic reactions in the body. Thus heavy water is not used for drinking purposes. Thus the statement is false.

Hence, option B is correct.