What are the three main categories of trading income?

The three main categories of trading income encompass trading income directly generated from business operations, income derived from property investments, and miscellaneous income that may arise from various business-related activities.

Trading income refers specifically to profits made from the sale of goods or services in the normal course of business. Property investment income pertains to earnings derived from renting or leasing out properties and includes capital gains from property sales as well. Miscellaneous income can include other types of income that don't fit neatly into the trading or property investment categories but are nonetheless part of the overall business operations, such as income from one-time contracts or unique service offerings.

The other options focus on categories that are not aligned with trading income. For example, income from salary, dividends, and property does not represent income specifically tied to the trading activities of a business. This mix includes personal income types and investment income, which are not classified as trading income. Similarly, income from wages and bonuses relates to employment income rather than business trading, and gifts do not constitute income derived from business activities. Therefore, the answer that identifies trading income, property investment, and miscellaneous income correctly illustrates the framework for assessing trading income categories.