The accused may answer to the accusation either by objecting to its sufficiency or by denying it.
If he objects to the sufficiency of the accusation, the objection shall be in writing, but need not be in any specific form. It is sufficient if it presents intelligibly the grounds of the objection.
If he denies the accusation, the denial may be oral and without oath, and shall be entered upon the minutes.
Ca. Bus. and Prof'l. Code § 6112