The answer is: B) Spills in your shop and any releases on pavement or outside should be poured down a drain.
Pouring used oil down a drain can cause damege to environment.
Oil is nonpolar substance and does not dissolve in the water (polar molecule), used oil remain existent in the drain and sewer or in the environment.
Small spills create a cumulative effect with  significant impact on the  environment.
Untended spills inside  a shop can spread to an inside  drain connected to the storm  sewer system and cause floods.
