GreenSource Company began the period with $370 in supplies. During the month, an additional $1,900 of supplies was purchased. A physical inventory at the end of the period revealed that there was $605 of supplies on hand. The adjusting entry should include a

a. credit to Supplies Expense for $1,665.

b. credit to Supplies for $1,665.

c. debit to Supplies for $605.

d. credit to Supplies Expense for $605.