Which of the Following Would Be an Appropriate "Green" Procedure

Which of the following would be an appropriate "green" procedure in the dental office?

A) Reuse regular cloth as sterilization wrap-this would reduce waste and add less plastic to the environment.
B) Use cloth towels in the restrooms and replace them daily-this would reduce waste.
C) Use digital radiography-this would reduce the waste from using regular film packets and eliminate the chemicals needed for developing films.
D) Reuse disposable air/water syringe tips-this would reduce waste volume and add less plastic to the environment.