Describing a Conflict of Interest

A drug company recruits a pharmacy technician to work a second, part-time job on it's sales force.
What would taking the job be a conflict of interest?

a.There is a rule that pharmacy technicians can't have two sources of income, even if it's a part-time job.
b.Working as a sales representative would create a conflict between the professional interests of the pharmacy.
c. Working as a sales representative might cause distraction for the pharmacy technician at both the pharmacy and the drug company.
d. The pharmacy and the drug company are interested in the health and safety of patients who take medications sold by the drug company.