Which of the Following Statements About a Disinfectant Is True

Which of the following statements about a disinfectant is true?

A) The disinfectant solution is more potent after several uses.
B) Items should be placed in the disinfectant wet.
C) Soap should be used as a main disinfectant.
D) Evaporation can alter the chemical makeup of the solution.
E) Disinfectants are used on human tissues as anti-infection agents.