Automobile manufacturers make money by selling cars. Cars pollute and use fossil fuels. Traditionally, American auto manufacturers have encouraged customers to buy bigger and more powerful cars. This lack of incentive to improve energy efficiency is known as a:

The stock of grommet corporation, a u. s. company, is publicly traded, with no single shareholder owning more than 5 percent of its outstanding stock. grommet owns 95 percent of the outstanding stock of staple inc., also a u. s. company. staple owns 100 percent of the outstanding stock of clip corporation, a canadian company. grommet and clip each own 50 percent of the outstanding stock of fastener inc., a u. s. company. grommet and staple each own 50 percent of the outstanding stock of binder corporation, a u. s. company. which of these corporations form an affiliated group eligible to file a consolidated tax return?