Canada Ltd has the following summary balance sheet at year-end. Current assets $350 000 Non-current assets 500 000 Current liabilities 50 000 Non-current liabilities 150 000 Share capital 300 000 Retained earnings 350 000 The debt ratio at year-end is: Select one: a. 23.5 %. b. None of the options c. 17.6% d. 76.5 % e. 40%