The fiscal year$-$end for a business is Decumber $31,20-1.$ On December $28,20-1,$ the business pays the rent for January $20-2,$ and the accounting clerk debirsRent Expense and credits Bank. The GAAP that has been violated is:

the principle of conservatism.

the matching principle.

the busines$5$ entity concapt.

the time period concept