Answer:
$20
Step-by-step explanation:
Using the rule of the lower of cost and net realizable value and considering the items given;
A: cost exceeds net realizable value by $20 Item
Adjustment required - Reduce the carrying amount for inventory by $20
B: cost is $10 lower than net realizable value Item
Adjustment required - None
C: cost is $5 lower than net realizable value
Adjustment required - None
From above, If Linden applies the rule to individual items, it should recognize a loss of $20.