Consider the following statements regarding the Mollier diagram:

A. The Mollier diagram is named after Richard Mollier, a German professor who pioneered experimental research on thermodynamics associated with water, steam, and water-vapor mixture.

B. The Mollier diagram is a graphical representation of a functional relationship between enthalpy, entropy, temperature, pressure, and quality of steam.

C. The Mollier diagram is primarily used in calculating the viscosity of liquids.

Which of the above statements is/are true?