Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Nutmeg, Inc. uses the LIFO method to account for inventory. During years in which inventory unit costs are generally rising and in which the company purchases more inventory than it sells to customers, its reported gross profit margin will most likely be (periodic inventory system applied):
Option A:lower than it would be if the company used the FIFO method.
Option B:higher than it would be if the company used the FIFO method.
Option C:about the same as it would be if the company used the FIFO method.

Answer: A