Moore Company uses the LIFO cost flow assumption and carries Product A in inventory on December 31,2019, at its units cost of $9.50. Because of a sharp decline in demand for the product, the selling price was reduced to $10.00 per unit. Moore's normal profit margin on Product A is $2.00, disposal costs are $1.00 per unit, and the replacement cost is $6.50. Under the lower of cost or market rule, Moore's December 31, 2019, inventory of product A should be valued at a unit cost of:

a. $6.50

b. $7.00

c. $9.00

d. $9.50