单选题 Which of the following statements best describes vertical common-size analysis and horizontal common-size analysis? Statement 1 : Each line item is expressed as a percentage of its base-year amount. Statement 2: Each line item of the income statement is expressed as a percentage of revenue and each line item of the balance sheet is expressed as a percentage of ending total assets. Statement 3: Each line item is expressed as a percentage of the prior year' s amount. Vertical analysis Horizontal analysis ①A. Statement 1 Statement 2 ②B. Statement 2 Statement 3 ③C. Statement 2 Statement 1