Q:Answer the following question given this paragraph: A three-prong plug is generally used on metal appliances. The two flat prongs carry current to and from the appliance. The round prong is for safety. It connects with a wire inside the outlet that goes down into the ground. If any stray current leaks from the circuit or if there is a short circuit, the ground wire carries the current into the ground, which harmlessly absorbs it. Q: What type of plug is generally used on metal appliances? Choices: - 4 prong - .2 prong - 5 prong - 3 prong A:
A:
3 prong