Which of the following statements is true?
a) The COSO report failed to define internal control
b) The COSO report emphasized that an internal control system is a tool of management
c) SAS 78 rejected the definition of internal control provided in the COSO report
d) COBIT concluded that a company's management is not responsible for establishing and monitoring a company's internal control system

Exercise 4-9presented below is information related to martinez corp. for the year 2017.net sales $1,399,500 write-off of inventory due to obsolescence $80,440cost of goods sold 788,200 depreciation expense omitted by accident in 2016 43,600selling expenses 65,800 casualty loss 53,900administrative expenses 53,500 cash dividends declared 43,300dividend revenue 22,100 retained earnings at december 31, 2016 1,042,400interest revenue 7,420 effective tax rate of 34% on all items exercise 4-9 presented below is information relateexercise 4-9 presented below is information relate prepare a multiple-step income statement for 2017. assume that 61,500 shares of common stock are outstanding. (round earnings per share to 2 decimal places, e.g. 1.49.)prepare a separate retained earnings statement for 2017. (list items that increase retained earnings first.)