This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Stimulation of horizontal semicircular canal causes nystagmus in which direction? 
Select and explain. 
A. Veical, B. Horizontal, C. Rotatory, D. Any of the above
B: Horizontal
Answer: B: Horizontal 
Explanation: The cupulae of the semicircular canals are stimulated by the movement of endolymphatic fluid and each canal causes the nystagmus in its own plane:-Stimulation of horizontal SCC - Horizontal nystagmusStimulation of superior SCC - rotary nystagmusStimulation of veical SCC - Veical nystagmusRef: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 19 - 20