Ringgold Company experienced an event that affected its financial statements as indicated below: Liabilities + Equity Revenue Expense Net income Assets Manufacturing Work in process overhead inventory (1,200) 1,200 n/a + n/a n/a n/a n/a Which of the following accounting events caused the indicated effects on the company's accounting equation? Multiple Choice None of these answers are correct. O Estimated overhead was charged to production Underapplied overhead was written off Actual overhead cost was incurred