This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
False about Localised Aggressive Periodontitis is. 
Select and explain. 
A. Affects Incisors and 1st molars., B. Shows strong antibody response., C. Main causative organism is P. Gingivalis., D. None
C: Main causative organism is P. Gingivalis.
Answer: C: Main causative organism is P. Gingivalis. 
Explanation: None