Which of the following is classified as operating activities?

Operating activities encompass the core functions of a business that relate directly to its day-to-day operations and the generation of revenue. These activities include transactions and events that affect net income and cash flow.

Payments to suppliers represent cash outflows for goods and services that are essential for running the business, making them a staple of operating activities. This type of activity is fundamental to the ongoing operations, as it reflects the costs incurred to maintain inventory and support sales activities.

In contrast, the sale of property, issuing stocks, and purchasing a building are not considered operating activities as they are related to investing and financing activities. The sale of property represents a change in asset ownership, issuing stocks relates to raising capital, and purchasing a building is an investment in long-term assets. Each of these highlights transactions that are not part of the routine operational functions but rather are focused on capital management and investment activities.