A change in accounting principle that is implemented using the retrospective approach includes:

A$)$ implementing the change in the current period only and not adjusting for the cumulative effects on prior periods.

B$)$ applying the new standard to the adoption period only and recording the cumulative adjustment for prior periods to the beginning balance of retained earnings.

C$)$ restating financial statements of all periods presented as if the new standard had been used in those periods.

D$)$ not accounting for the change in the current period or prior periods.