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
Signs positive in early pregnancy are : 
Select and explain. 
A. Hegar's sign, B. Palmer's sign, C. Goodell's sign and Osiander's sign both, D. All
D: All
Answer: D: All 
Explanation: All