Concept:The consistency concept states that a firm should use the same accounting method regularly in each accounting period.
Explanation:The consistency concept guides a firm to adopt a regular and uniform method of recording transactions over time.
This allows financial statements from different periods to be compared fairly and accurately.
Changing methods frequently would make results difficult to compare.
Under this concept, once a business chooses a particular method of recording transactions, it should continue using it consistently unless there is a strong reason to change.
The periodicity concept is different because it deals with dividing the life of a business into equal time periods such as months or years.
The going concern concept assumes that the business will continue to operate for the foreseeable future.
The historical cost concept requires recording assets at their original purchase price.
Among these, only the consistency concept emphasizes adopting a regular method of recording transactions in the books.
Therefore, the correct option is consistency concept.
Answer:B. consistency concept