FIFO Inventory Valuation Steps:

• Identify total receipts: January 100 units at $5 each ($500 total), February 200 units at $8 each ($1,600 total).
• Note March entry: 50 units listed, but unclear if receipts or issues, and no cost provided for receipts.
• Apply FIFO: Issues (if any) come from oldest inventory, but issues quantities unspecified.
• Calculate ending value: Impossible without total issues and March cost/details.

Not enough information.

Why D is correct:
Insufficient data to confirm; problem ambiguous.

Why the others are wrong:

• A, B, C: Also unverifiable due to missing issues quantities and March cost.

Final answer: Not enough information.