Q. Which of the following statements is correct according to Clausius statement of second law of thermodynamics?

• (A) it is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature
• (B) it is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source
• (C) it is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle
• (D) none of the above