How does a central receiver system collect the sun's heat energy?
O A. by using a large dish studded with mirrors to reflect sunlight onto a receiver mounted at the center of the dish
by using long curved mirrors to reflect sunlight onto a receiver installed along the length of each mirror
О в.
OC.
by using an array of solar panels to reflect sunlight onto a receiver made from a semiconductor material
OD. by using rows of mirrors called heliostats to reflect sunlight onto a receiver mounted at the top of a tower