Select the best answer. Qualified business income includes which of the following? All items of net income, gain, deduction, and loss with respect to the taxpayer's qualified A. trade or business, including guaranteed payments and investment-related income All items of net income, gain, deduction, and loss with respect to the taxpayer's qualified B. trade or business, but excluding both guaranteed payments and investment-related income All items of net income, gain, deduction, and loss with respect to the taxpayer's qualified C. trade or business, including guaranteed payments but excluding investment-related income All items of net income, gain, deduction, and loss with respect to the taxpayer's qualified D. trade or business, including investment-related income but excluding guaranteed payments Submit Answers