Net imbalance from trial balance casting error Steps:

• Error 1: Carriage outwards debit balance overstated by $90 in trial balance, causing debits$90 higher than credits.
• Error 2: Returns journal overcast by $100 affects nominal and personal ledgers equally if posted individually, netting zero imbalance.
• Error 3: Receipt posted as debit to wrong account (Brian Green instead of bank); both debit-side, no total effect.
• Error 4: Rent received posted as debit to rent (wrong side/account); corresponding bank entry nets zero difference in totals. Why A is correct:
• Trial balance debits exceed credits by $90 due to casting error; suspense credited$90 balances it per double-entry principle. Why the others are wrong:
• B: $740 misadds unrelated amounts like$350 + $500 -$110.
• C: Debit $90 assumes credits exceed debits, opposite of error effect.
• D: Debit $740 combines irrelevant figures without basis.

Final answer: A