Q All are true about achalasia except
A. Type 1 Achalasia is characterized by 100% failed contractions (DCI<100) and no esophageal pressurisation
B. Type 3 Achalasia has premature contractions in at least 20% swallows
C. IEM (Ineffective esophageal motility) is characterized by >20% ineffective swallows (DCI<450)
D. Patients with type 2 achalasia have the best response to therapy