One Hundred Units of Inventory on Hand at the End

One hundred units of inventory on hand at the end of the year are recorded at their cost of $10 each using LIFO. Current net realisable value is $8.00. How would the Gross profit be affected by the adjusting entry needed under lower- of- cost- and- net- realisable- value?

A) Gross profit would go down by $80.
B) Gross profit would go up by $200.
C) Gross profit would not be affected.
D) Gross profit would go down by $200.