The correct answer is B. Silicon.
Silicon is a semiconductor material that is used in solar cells to convert sunlight into electricity. It is a non-metallic element that is found in sand and rocks. Silicon is a very stable material and can withstand high temperatures. It
is also a good conductor of electricity.Tin, caesium, and thallium are not used in solar cells. Tin is a metallic element that is used in solder and other alloys. Caesium is a metallic element that is used in photoelectric cells and other
electronic devices. Thallium is a metallic element that is used in rat poison and other pesticides.Solar cells are made up of a thin layer of silicon that is sandwiched between two layers of metal. When sunlight hits the silicon, it creates an electric current. This current can be used to power devices or to store in batteries.
Solar cells are a renewable source of energy that does not produce greenhouse gases. They are becoming increasingly popular as a way to generate electricity.