Data related to the inventories of Costco Medical Supply are presented below:

Surgical Surgical Rehab Rehab
Equipment Supplies Equipment Supplies
Selling price $ 260 $ 100 $ 340 $ 165
Cost 170 90 250 162
Costs to sell 30 15 25 10

In applying the lower of cost or net realizable value rule, the inventory of surgical equipment would be valued at:

a. $230

b.$240

c. $170

d. $152