Concept:Single entry system records incomplete transactions, making profit calculation unreliable.
Explanation:Under a single entry system, full double-entry records are not maintained.
As a result, the exact profit or loss for the period cannot be easily ascertained.
This system does not reduce profit, lower total sales, or cause owner withdrawals.
Hence, the main disadvantage is the difficulty in determining profit.
Answer:B. it is difficult to determine profit for the period