Which of the following is TRUE about Zenker's diveiculum

Answer- C. Treatment is simple excisionZenker's diveicula are mucosal outpouchings occurring through the triangular bare area (Killian's triangle") between theupper oblique fibres and lower horizontal fibres of the inferior constrictor muscle, in lower pa of pharynx.Zenker's diveiculum is a pulsion diveiculum.Zenker's is the most common esophageal diveicula.Zenker's diveicula are rarely seen below 30 yrs ofage, most patients are over 50.The diveicula arises posteriorly in the midline of neck.Treatment-Treatment is excision ofpouch and cricopharyngeal myotomyDohlman's procedureEndoscopic laser treatment