Concept:FIFO assumes that the oldest stock items are sold first.
Explanation:FIFO means First In, First Out.
The first goods purchased are the first goods issued or sold.
Therefore, the cost of goods sold follows the same order as the actual movement of stock.
This makes the cost flow match the physical flow of goods.
Among the options given, this is the advantage stated clearly in option D.
Options A, B, and C are not the main recognized advantages of FIFO.
Answer:D. Its flow of cost is in sequence with the flow of stock.