A 70-year-old man complains of a sensation of food sticking

A 70-year-old man complains of a sensation of food sticking in his lower chest area. This happens when he eats either liquids or solids. He also has a slight weight loss. The most likely diagnosis is

Achalasia
Esophageal spasm
Hypertensive LES
Hiatal hernia with GERD
Barrett’s esophagus

a. Achalasia