Purchases ledger control account excludes sales-related items

Steps:

• Identify the purchases ledger control account as a summary of creditors' balances for supplier transactions.
• List standard debits: purchases, returns outwards, discounts received, interest charged by suppliers.
• List standard credits: payments to suppliers, contra entries, cash discounts.
• Eliminate options by matching to debits/credits; returns inwards do not fit.

Why D is correct:

• Returns inwards are customer returns of goods sold, debited to the sales ledger control account per double-entry bookkeeping principles, not the purchases ledger.

Why the others are wrong:

• A. Contra entry offsets mutual debts between purchase and cash ledgers, appearing as a credit.
• B. Discounts received reduce supplier amounts owed, credited in the account.
• C. Interest charged by suppliers for late payments is debited as an expense in the account.

Final answer: D