Buckeye Insulation and Acoustics has just completed its adjusting entries for the period. The balance of all revenue accounts is $745,900. The balance of all expense accounts is $618,560. After these account balances are transferred, a. there will be a debit balance of $618,560 in Income Summary. b. there will be a credit balance of $127,340 in Income Summary. c. there will be a debit balance of $745,900 in Retained Earnings. d. The balance cannot be determined without the beginning balance of Income Summary