human
Question: An appliance manufacturer has redesigned its original electrical fan. It has made the new fan more energy efficient. This means that the new fan

Choices:
A) converts more electricity into heat.
B) spins at a slower rate than the original fan.
C) requires more electricity than the original fan.
D) reduces the percentage of heat lost to the atmosphere.
gpt
The correct answer is 3: reduces the percentage of heat lost to the atmosphere..