The balance in the prepaid rent account before adjustment at the end of the year is $12,490, which represents 10 months' rent paid on December 1. The adjusting entry required on December 31 is

a.debit Prepaid Rent, $1,249; credit Rent Expense, $1,249

b.debit Rent Expense, $11,241; credit Prepaid Rent, $1,249

c.debit Rent Expense, $1,249; credit Prepaid Rent, $1,249

d.debit Prepaid Rent, $11,241; credit Rent Expense, $1,249