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
Ectopic pregnancy differs from threatened abortion by: 
Select and explain. 
A. Minimal vaginal bleeding, B. Pain follows bleeding, C. Uterine size corresponds to gestational age, D. Manifests at an early age
D: Manifests at an early age
Answer: D: Manifests at an early age 
Explanation: None