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
30 year nulliparous woman presents with endometriosis, on Laparoscopic examination, multiple superficial endometriotic implants are seen, each being around 1 - 2 cm in size, there are no significant adhesions. Which grade of endometriosis does the patient have 
Select and explain. 
A. Minimal, B. Mild, C. Moderate, D. Severe
B: Mild
Answer: B: Mild 
Explanation: ASRM Classification of endometriosis:
Minimal: Isolated superficial disease on peritoneal surface.
Mild: Superficial multiple implants < 5 cms with no significant adhesions.
Moderate: Multifocal disease, both superficial and invasive and associated with adhesions in tube and / or ovaries.
Severe: Multifocal disease like in moderate cases along with large ovarian endometriomas and adhesions in tube, ovaries, and cul de sac.