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: Radiology
Molar pregnancy can be best diagnosed by 
Select and explain. 
A. Clinical history & examination, B. Ultrasound study, C. Laproscopy, D. CT Scan
B: Ultrasound study
Answer: B: Ultrasound study 
Explanation: USG is the investigation of choice for molar pregnancies.