The correct option is A.
Work place violence refers to any physical assault, threatening behavior or verbal abuse that occur in the workplace. Heath care workers experience more non-fatal workplace violence than any other profession. There are many reasons why workers may not want to report violent events and this include the fact that health workers normally have the fear that reporting will reflect poorly on them.
The answer is c because I said so, and yeah i need 20 characters so here ya go.... ITS C
The answer is c, if you do not have a specific machine to achieve your purpose, use something similar and adapt to your needs