Is this the correct answer? need help

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Last year, Blanda Brothers had positive cash flow from operation; however, cash on its balance sheet decreased. Which of the following could explain this? Select one: O a. The company issued new common stock. O b. The company paid off some of its long-term debts. c. The company sold some of its assets. O d. The company eliminated its dividend. O e. The company sold a lot of new fixed assets