Which of the following accounting changes requires an emphasis-of-matter paragraph regarding consistency in a nonpublic company auditors' report?

A) A change in the estimated useful lives of a class of fixed assets.

B) A write-off of a patent because future benefits do not appear to exist.

C) A change from the straight-line method of depreciation to an accelerated method for a class of fixed assets.

D) A change in calculating bad debt expense from one percent to two percent of credit sales.