Concept:The Capital Account is affected only by the owner's capital contribution or drawings, not by everyday business transactions.
Explanation:On Jan. 1, the owner introduced
NGN50,000 by cash, and this amount is credited to the Capital Account.
The later transactions, such as buying goods, selling fixtures, selling on credit, and buying on credit, affect asset, liability, or expense accounts, not the Capital Account.
Therefore, by Jan. 5, no other entry has changed the Capital Account.
So the Capital Account balance remains
N50,000.
Answer:N50,000 (Option B)