Which of the following nursing interventions for gastroesophageal reflux disease (GERD) is appropriate along with its rationale and medication with potential side effects?
A) Administering antacids as prescribed to neutralize gastric acid
B) Encouraging the patient to lie down immediately after meals to promote digestion
C) Advising the patient to avoid large meals and spicy foods to prevent exacerbation of symptoms
D) Instructing the patient to consume high-fat meals to promote weight gain