Certified Production & Operations Manager Exam Practice 2026 – Complete Study Guide

The correct answer highlights sales as a "line" function because it directly contributes to generating revenue for the organization. Line functions are typically those that are involved in the core activities of the business, directly impacting the company’s ability to earn income. Sales personnel engage with customers, drive revenue through actual transactions, and play a crucial role in the overall success of the company.

In contrast, options like IT, accounting, and finance are generally categorized as staff functions. While these roles are essential in supporting the business's operational capabilities, they do not engage directly in activities that create revenue. IT supports the infrastructure that enables operations; accounting manages financial records and reporting; and finance handles the allocation of capital and resources. These functions are vital for maintaining the health and efficiency of operations but do not directly generate sales or revenue.