Don't use AI or incorrect down vote

The logic behind the lower$-$of$-$cost$-$and$-$net$-$realizable$-$value rule is:

A$.$ Inventory gradually becomes obsolete.

B$.$ Inventory that is unsalable should be written down to zero $($or its scrap value$).$

C$.$ An asset is not worth more than it would cost the owner to replace it$.$

D$.$ An asset is not worth more than it would be sold at its net realizable value.