An income statement displays which financial relationships over a period of time?

An income statement specifically focuses on the financial performance of a company over a designated period by displaying the relationship between revenues and expenses. It summarizes how much money the company earned (revenues) and how much it spent (expenses) during that time frame, ultimately determining the net income or loss for that period. This allows stakeholders to assess the profitability and operational efficiency of the business, providing valuable insights into its financial health.

The other choices refer to different aspects of financial reporting; for instance, the balance sheet is the financial statement that details assets and liabilities at a specific point in time, offering a snapshot of the company's financial condition rather than its performance over a period.