Please choose the correct answer to the 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

Answer1: converts more electricity into heat. Answer2: spins at a slower rate than the original fan. Answer3: requires more electricity than the original fan. Answer4: reduces the percentage of heat lost to the atmosphere.

Answer format: answer1/answer2/answer3/answer4