Robin company has an unadjusted balance of $12,900 in inventory. Through a physical count, the company determines that its actual inventory on December 31, 2019 is $13,000. The necessary adjusting entry on December 31, 2019 will be; o Select one: O Debit Cost of Goods Sold $100; Credit Merchandise Inventory for $100. O Debit Cost of Goods Sold $12,900; Credit Merchandise Inventory for $12,900. O Debit Income Summary $100; Credit Merchandise Inventory for $100. O Debit Merchandise Inventory for $100; Credit Cost of Goods Sold S100; (hp)