A 45-year-old woman presents with a swollen, painful left calf after a long-haul flight. Wells score suggests a likely deep vein thrombosis (score 3). What is the most appropriate immediate management?AArrange D-dimer testing only and await the resultBStart therapeutic low-molecular-weight heparin and arrange same-day proximal leg ultrasoundCReassure and discharge without investigationsDPrescribe Aspirin 75 mg and arrange routine ultrasound in 4 weeksEStart prophylactic-dose low-molecular-weight heparinCheck my answer