<prompt> Most common motility disorder leading to dysphagia:Nut cracker esophagusEsophageal webDiffuse esophageal spasmAchalasia cardia  <response>: Ans. d Achalasia cardiaRef: Sabiston 20th Edition, Pagesl015-1018 Most common motility disorder -- Achalasia Most common hypermotility disorder: Nut cracker esophagus 