This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cervical intraepithelial and cervical cancer screening, Subject name: Gynaecology & Obstetrics
In Ca cervix low grade squamous intraepithelial lesion (LSIL) in Bethesda system involves: 
Select and explain. 
A. CIN I, B. CIN II, C. CIN III, D. Squamous metaplasia
A: CIN I
Answer: A: CIN I 
Explanation: Ans: A (CINI) "CIN-I is lately described as low grade squamous intraepithelial lesion (LSIL) according to Bethesda classification.CIN-II and CIN-III are described as high grade squamous intraepithelial lesion (HSIL) according to latest Bethesda classification. HSIL have propensity to progress and become invasive, and therefore need investigations and treatment"- Shaws Gynaecology 14th/ 360