What is a sign of a green workplace?

Correct answer: Saving energy and paper

A green workplace applies environmental responsibility to everyday work practices. The governing concept is resource efficiency: achieving the required work while using less electricity, paper, water and other materials and producing less waste. Saving energy may involve switching off unused lights, using efficient equipment and selecting suitable power settings. Saving paper may involve digital documents, double-sided printing when printing is necessary, and reuse or recycling. Therefore, option C is the clear sign of a green workplace. Unnecessary printing consumes paper and ink, lights left on waste electricity, and mixing waste makes recycling and safe treatment more difficult. These distractors describe wasteful practices rather than sustainability.