Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges. Molly and Mike are discussing ways to save energy. - Molly: 

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges.

Molly and Mike are discussing ways to save energy.

- Molly: “As far as I know, using energy-saving bulbs is a good way to save electricity.”

- Mike: “. They use only a quarter of the electricity of standard bulbs.”