Answer: Safety hierarchy
Explanation:
Safety hierarchy is defined as the ordering of the steps to take measure against the hazard to control an manage it. It helps in removal of risk and avoiding hazardous situations.This structure includes elimination of hazards ,substitution,engineering controls ,administrative controls and personal protective equipment.
According to the question, employees working at the coffee shop are describing the scenario of safety hierarchy.As Jen is responsible for improving safety, Richard is handling administrative controlling, Ashley is managing engineering controls and George is eliminating the risk.