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: Surgery
A patient comes with dysphagia and regurgitation. Manometry shows ineffective contractions in the Lower esophagus. Which of the following will not cause this condition 
Select and explain. 
A. Degenerative neurons, B. Chagas disease, C. Herpes zoster, D. GERD
D: GERD
Answer: D: GERD 
Explanation: Condition is achalasia. There are two theories for achalasia

Degenerative neurons
Infection of the neurons caused by herpes zoster and chagas disease