Step-by-step explanation:
First in the FIFO scheme process is where the last inventory is used first in the case of production and then in the case of a sale. According to US GAAP, financial reporting accepts FIFOs only and the weighted average product assessment forms. Eventually in the first form, the product obtained last is not authorised first.
Consequently, Evan's questions about Marty's system of procurement are correct. In fact, according to accounting principles the procurement system used has to be identified. In order to make the financial statement true and fair, what is followed has to be revealed. Therefore LIFO and FIFO policy can not be claimed by Marty.