This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ULTRASOUND, Subject name: Radiology
Most commonly used method of display of ultrasound is 
Select and explain. 
A. A-Mode, B. B-Mode, C. M-Mode, D. D-Mode
B: B-Mode
Answer: B: B-Mode 
Explanation: Applications- A-Mode- Commonly used for orbital biometry,Axial Length of eyeball. B-Mode (Brightness) : Most commonly used mode. M-mode (motion): Used for valvular morphology and motion,Echocardiography and Fetal Hear Rate monitoring.