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: Gynaecology & Obstetrics
Carcinoma cervix la1 is : 
Select and explain. 
A. < 3 mm depth, B. < 7 mm depth, C. > 3 mm depth, D. > 7 mm depth
A: < 3 mm depth
Answer: A: < 3 mm depth 
Explanation: < 3 mm depth