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
Indications of medical managemnt in ectopic pregnancy: 
Select and explain. 
A. Presence of fetal heart activity, B. Size < 4cms, C. Gestation < 6weeks, D. ahCG > 1500
B: Size < 4cms
Answer: B: Size < 4cms 
Explanation: None