Which group of accounts includes income generated from sales of goods and services?

The group of accounts that includes income generated from the sales of goods and services is Revenue/Sales. Revenue refers to the total income generated by the sale of products or services related to the company's primary operations. When a business sells goods or services to its customers, the money received from these transactions is recorded in the revenue account, reflecting the company's earning activities.

Revenue is a critical component of a company's financial statements, specifically in the income statement, where it contributes to the overall profitability of the business. It directly affects cash flow and is an essential indicator of business performance and operational success. Furthermore, revenue is the starting point in calculating net income, which is crucial for assessing a company's financial health.

In contrast, assets represent resources owned by the company, expenses denote costs incurred in the process of earning revenue, and equity refers to the residual interest in the assets of the business after liabilities are deducted. Each of these categories plays a significant role in financial reporting but does not encompass income from sales like the Revenue/Sales category does.