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 QRS duration between 100 and 120milliseconds suggests all of the following, except 
Select and explain. 
A. Normal, B. Left anterior Fascicular Block, C. eft posterior Fascicular Block, D. Left Bundle Branch Block
D: Left Bundle Branch Block
Answer: D: Left Bundle Branch Block 
Explanation: Ans. is 'd' i.e., Left Bundle Branch Block