Q60578 - CESGRANRIO - 2010 - EPE - Assistente Administrativo

The fragment "...energy-sucking gadgets..." (line 23) means

a) objects that create an energy-vacuum.
b) energy that is pulled from the ground.
c) equipment that will produce a lot of energy.
d) products that consume a great amount of energy.
e) electrical devices that are powered by alternative fuels.