Final answer:
Liz should explain the rationale behind implementing the sick leave policy to show her staff that she thought through the implications of the decision.
Step-by-step explanation:
Liz should explain the rationale behind implementing the sick leave policy to show her staff that she thought through the implications of the decision. By implementing a sick leave policy, Liz is addressing the potential impact of employees falling ill and the need for them to take time off work. This demonstrates that Liz is considering the well-being of her employees, the productivity of the company, and the overall success of the business.