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
In a young patient with abdominal pain and feature most suggestive of ectopic pregnancy is : 
Select and explain. 
A. Amenorrhea, B. Vomiting, C. Palpation of tender adnexal mass, D. Increase beta HCG in urine
D: Increase beta HCG in urine
Answer: D: Increase beta HCG in urine 
Explanation: Increase beta HCG in urine