Advertising Claims Sometimes State That Adding Something Mechanical to a Car's

Advertising claims sometimes state that adding something mechanical to a car's engine will allow it to recover 100% of the energy that comes from burning gasoline.You should be skeptical of such claims because they violate the

A) first law of thermodynamics.
B) second law of thermodynamics.
C) law of conservation of matter.
D) activation energy requirements of all chemical reactions.