Concept:A trial balance mismatch occurs when a transaction is recorded on only one side or is completely omitted.
Explanation:If rent of GH¢ 2,000 is received, it should be recorded as income.
Income increases the credit side of the trial balance.
Omitting this entry removes GH¢ 2,000 from the credit side.
So the debit side remains GH¢ 2,000 higher than the credit side.
The other options either affect both sides equally or involve GH¢ 1,000, not GH¢ 2,000.
Answer:Option A: A receipt of GH¢ 2,000 for rent has been omitted from the books.