Accounting for IGCSE & O level - The Fundamentals Of Accounting (Section 6 - No. 16)

Which of these errors would NOT be revealed by a trial balance?

a) An error in addition in the journal

b) An error where a transaction is completely omitted.

c) Transposing the numbers when entering a transaction.

d) Posting a debit to the wrong account.

Completely omitted transaction. (Error of omission).