Which of the following items would require you t.o comply with EPA disposal guidelines? A. Keyboard B. System board C. Power supply D. Battery E. None of the above

The other options are not required to be disposed of according to EPA guidelines. Keyboards, system boards, and power supplies can be disposed of in the regular trash. However, it is important to recycle these items whenever possible, as they contain valuable materials that can be reused.

Batteries should be recycled or disposed of at a hazardous waste collection site. Do not throw batteries in the trash, as they can leak harmful chemicals into the environment.