Answer: The correct answer is "b. Ace has done nothing to change its CERCLA liability."
Explanation: CERCLA is the Comprehensive Environmental Response, Compensation and Responsibility Act and was designed to promote cleaning, maintenance and protection of the environment against hazardous waste.
Those responsible for releasing dangerous substances are identified to take care of their cleaning through the superfunds, therefore by creating the new corporation and transferring the assets: Ace has done nothing to change its CERCLA liability.