Which of the following statements is/are correct?
　　Fixed budgets are not useful for control purposes.
　　A prerequisite of flexible budgeting is a knowledge of cost * patterns.
　　Budgetary control procedures are useful only to maintain control over an organisation's expenditure.
　　A. (ii) and (iii) only.
　　B. (i), (ii) and (iii).
　　C. (i) and (ii) only.
　　D. (ii) only.
　　正確答案：D
　　答案解析：
　　The correct answer is: (ii) only.
　　Statement (i)is not correct. A fixed budget may be useful for control purposes where activity levels are not prone to change, or where a significant proportion of costs is fixed, so that alterations in activity levels do not affect the costs incurred.
　　Statement (ii)is correct. Fixed and variable costs must be separately identified so that the allowance for variable costs may be flexed according to the actual activity level.
　　Statement (iii) is not correct. Budgetary control procedures can be used to monitor and control income as well as expenditure.