This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fetus Placenta & Fetal Membrane, Subject name: Gynaecology & Obstetrics
Placentamegaly is diagnosed on USG if size of placenta is more near: 
Select and explain. 
A. 25 mm, B. 30 mm, C. 35 mm, D. 40 mm
D: 40 mm
Answer: D: 40 mm 
Explanation: Ans is d, i.e. 40 mmPlacental thickness increases by 1 mm/week. If placental thickness is more than 40 mm at term, it is called as placentomegaly