A 42-year-old woman with typical gastro-oesophageal reflux symptoms (heartburn and regurgitation) for 4 months has no alarm features such as weight loss, dysphagia or anaemia. What is the most appropriate initial management?AArrange urgent upper endoscopyBStart a proton pump inhibitor once daily and implement lifestyle measuresCStart long-term H₂-receptor antagonist therapy without reviewDNo treatment; reassure that reflux is benignERefer for Nissen fundoplicationCheck my answer