Dental Health Care Workers Should Have Heightened Awareness of the Issues

Dental health care workers should have heightened awareness of the issues of drug abuse because:

A) their coworkers may abuse drugs in the workplace.
B) "shoppers" may interact with health care workers in an effort to obtain controlled substances.
C) patients who abuse drugs intravenously are more likely to contract sexually transmitted or blood-borne diseases that are transmissible to the dental health care worker.
D) dentist's offices have prescription pads and abusable substances that need to be safely monitored.
E) of all of the above.