Companies are allowed to depart from the requirement that a change in accounting principle be reported retrospectively when: (select all that apply.)check all that applya) disclosure is made of the impact of the choice not to apply the change to the amounts reported in the financial statements. b) it is impracticable to determine some period-specific effects. c) it is impracticable to determine the cumulative effect of prior years. d) the prospective approach is mandated by authoritative accounting literature