Which One of the Following Statements Best Describes the Operation

Which one of the following statements best describes the operation of a heat engine?

A) A heat engine uses input heat to perform work and rejects excess heat to a lower temperature reservoir.
B) A heat engine performs work and generates an equal amount of heat in a cyclic process.
C) A heat engine transfers heat from a lower temperature reservoir to a higher temperature reservoir through work performed on the system.
D) A heat engine transfers heat from a higher temperature reservoir to a lower temperature reservoir through work performed on the system.
E) A heat engine decreases the entropy of the universe by generating an equal amount of heat and work.