Final answer:
Employee attendance records are central for creating a Next day labor plan because they inform on available personnel. Pay schedules, overtime policies, and other administrative factors also impact labor planning. More context is needed to ascertain the relevance of other tools.
Step-by-step explanation:
The tools used as inputs for the Next day labor plan are likely to include Employee attendance records (C) because it is necessary to know who will be available to work. Additionally, factors such as pay schedule, processing timesheets and attendance, as well as overtime or lieu time policies, can be essential in creating an accurate labor plan. However, to clarify the most appropriate tools, more context on the specifics of the Next day labor plan would be needed. While schedule optimization software and inventory management tools can also play roles in labor planning, the question does not provide enough detail to confirm their relevance in this particular context. Workplace safety protocols, benefits, and safety requirements are important for overall labor management but may not be direct inputs when creating a next-day labor plan.