The following shows how four students use electricity in their daily lives.

Ben: I use energy-saving bulbs for all the lights at home.
Mali: I always switch on all the lights and fans during the day when I am at home.
Cindy: I wash only full loads of clothes with the washing machine.
Aroon: I always charge my mobile phone and laptop when I am not using it.

Which students are practicing ways to conserve electricity?