Final answer:
The most appropriate treatments from the options provided for symptoms of dysphagia and chest pain without regurgitation, which could be indicative of GERD are: 2) antacids or 4) proton pump inhibitors.
Step-by-step explanation:
The symptoms described in the question suggest that the issue may be related to gastroesophageal reflux disease (GERD) or a similar condition affecting digestion. These symptoms, particularly chest pain that can mimic a myocardial infarction (MI) and issues with swallowing, are often associated with GERD, which involves the backup of stomach acid into the esophagus. Considering this, antacids or proton pump inhibitors (PPIs) are the standard treatment options to manage the acid reflux symptoms of GERD.
Since no regurgitation is reported, it's less likely that the treatment would focus on conditions like achalasia or esophageal motility disorders which are associated with difficulty in swallowing and regurgitation of undigested food. The most suitable answer from the given options would be antacids (2) or proton pump inhibitors (4) depending on the severity and chronicity of the symptoms, while keeping in mind the importance of a clinical evaluation to rule out cardiac issues that can also present with chest pain.