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: Surgery
Which of these is untrue regarding third molar eruption? 
Select and explain. 
A. The tooth assumes a horizontal to mesioangular to vertical position during development, B. By the age of 24 years, 95% of third molars that will erupt have completed their eruption, C. 50% root completion of third molar root is completed by 20 years of age, D. Over-rotation from mesio-angular to distoangular position occurs during the terminal portion of root development
C: 50% root completion of third molar root is completed by 20 years of age
Answer: C: 50% root completion of third molar root is completed by 20 years of age 
Explanation: None