Julia's previous endorsements have accumulated 9 penalty points. With the addition of 3 points for the current offence, she will have 12 points, triggering a disqualification under the penalty points scheme. Option B is incorrect as warnings are not typically issued in such scenarios. Option C is not applicable since she is already appearing in court. Option D is less likely as discretionary disqualification is typically reserved for more severe speeding offences. Option E downplays the cumulative effect of her offences. Thus, Option A provides the correct advice. 

Key Point: Legal professionals must understand and communicate the impact of the penalty points system to clients, ensuring they comprehend the serious implications of repeated traffic offences.