Final answer:
The incorrect statement is that a licensee is required to provide one additional original set with accompanying forms and schedules.
Step-by-step explanation:
The *incorrect* statement about duplicate copies supplied to the client is Option c. When filing a return, the client needs a copy to file and a licensee is required to provide one additional original set with accompanying forms and schedules.
Option c is incorrect because a licensee is not required to provide one additional original set with accompanying forms and schedules. The client only needs a copy to file, and the licensee is not obligated to provide any additional original sets.
Therefore, the correct statement is that a licensee is not required to provide duplicate records to a client each time they ask.