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: Medicine
A ventrolateral cordotomy is performed to produce relief of pain from the right leg. It is effective because it interrupts the - 
Select and explain. 
A. Left Dorsal Column, B. Left Lateral Spinothalamic Tract, C. Right Lateral Spinothalamic Tract, D. Right corticospinal Tract
B: Left Lateral Spinothalamic Tract
Answer: B: Left Lateral Spinothalamic Tract 
Explanation: None