Final answer:
To find an employee's payroll information, a manager should use an ERP (Enterprise Resource Planning) system, as it integrates various organizational functions, including payroll, into one system.
Step-by-step explanation:
If a manager wanted to find a certain employee's payroll information, the most appropriate information system to use would be D) ERP or Enterprise Resource Planning system. ERP systems integrate various functions of an organization into one complete system to streamline processes and information across the organization. This includes financials, human resources, supply chain, and other operations, which means payroll information would be readily accessible within this system.