The Diagram Below Is a Schematic of a Heat Engine

The diagram below is a schematic of a heat engine. The three quantities, Q_H, Q_L, and W are represented, respectively, by

A) 1, 2, 3
B) 1, 3, 2
C) 2, 3, 1
D) 3, 1, 2
E) 3, 2, 1