The purpose of an ignition interlock device is to

A start your car without a key

prevent a thief from starting your car

C prevent you from driving if alcohol is detected in your breath

D. reduce the amount of pollution your vehicle produces

Answer:c

Ignition Interlocks. An ignition interlock is a small handheld device that is connected to your car and measures the amount of alcohol in the user's breath. In simplest terms, an interlock is a car breathalyzer that prevents a user from starting a vehicle until a breath alcohol test is taken.