Which of the following is NOT a primary business function handled by Information Systems?

The focus on understanding business functions related to Information Systems is key in information management settings. In this context, all other options—Accounting and Finance, Human Resources, and Sales and Marketing—are typically regarded as primary business functions enabled or supported by Information Systems.

Customer Service, while crucial to a business, is generally considered a support function rather than a primary business function. This classification stems from the role these functions play in the operation of a business. Customer Service can enhance the effectiveness of primary functions but does not directly manage resources, finances, or employees, which are core tasks of the other listed business functions.

Thus, distinguishing between primary and support functions within the framework of Information Systems indicates that Customer Service does not fit the same level of direct operational importance as the others, justifying its identification as the correct answer to this question.