Read the Following Scenario and Answer Questions

Read the following scenario and answer questions.
Employment in the fast food industry (e.g. McDonalds, Tim Hortons, Wendy's, and so on) is a way of earning money for everyone from teenagers to senior citizens. The long hours of operation lend themselves to a series of shifts that fit the needs of students, homemakers, and retired persons. While rare, the possibility of workplace violence exists in this industry and no one who works there is immune.
-What is the most likely target hardening strategy that fast food restaurants would use to protect against Type 1 violence?

A) installing closed-circuit televisions and video cameras
B) installing bullet-resistant barriers and revolving doors
C) keeping as little cash as possible in cash drawers
D) training employees on how to behave when threatened with assault