(a) Respondent shall file an answer within 30 days of receipt of the complaint, unless otherwise specified in this title or ordered by the hearing officer.

(b) The answer shall:

(1) Respond specifically to each factual allegation contained in the complaint;

(2) Specifically plead any affirmative defense; and

(3) Set forth any mitigating factors or extenuating circumstances.

(c) A general denial shall not be permitted. Allegations are admitted when not specifically denied in respondent's answer.