On October 1, Robertson Company sold inventory in the amount of $5,800 to Alberta, Inc. with credit terms of 2/10, n/30. The cost of the items sold is $4,000. Robertson uses a periodic inventory system. The journal entry (or entries) prepared by Robertson on October 1 is(are).a. Debit Sales Revenue and credit Accounts Receivable for $5,800.b. Debit Sales Revenue and credit Accounts Receivable for $5,800; debit Cost of Goods Sold and credit Inventory for $4,000.c. Debit Accounts Receivable and credit Sales Revenue for $5,800.d. Debit Accounts Receivable and credit Sales Revenue for $5,800; Debit Cost of Goods Sold and credit Inventory for $4,000