Final answer:
The correct journal entry is (a) Debit Raw Materials Inventory 54,000; Credit Accounts Payable 54,000.
Step-by-step explanation:
The correct journal entry to record the purchase of 54,000 of raw materials on account is:
(a) Debit Raw Materials Inventory 54,000; Credit Accounts Payable 54,000
This entry recognizes an increase in Raw Materials Inventory, which is an asset account, and an increase in Accounts Payable, which is a liability account. Since the company purchases materials on account, it means they owe the supplier and the amount will be paid in the future.