The balance in the supplies account before adjustment at the end of the year is $6,469. The proper adjusting entry if the amount of supplies on hand at the end of the year is $1,685 would be

a.debit Supplies Expense, $1,685; credit Supplies, $1,685

b.debit Supplies, $4,784; credit Supplies Expense, $4,784

c.debit Supplies, $1,685; credit Supplies Expense, $1,685

d.debit Supplies Expense, $4,784; credit Supplies, $4,784