A 64-year-old woman is admitted after a total hip replacement. She is obese, a smoker and will be largely immobile for the first 48 hours. What is the most appropriate strategy to reduce her risk of venous thromboembolism?APrescribe early ambulation onlyBPrescribe prophylactic low molecular weight Heparin and mechanical compression stockingsCStart therapeutic-dose low molecular weight Heparin and WarfarinDGive Aspirin alone as thromboprophylaxisEGive no pharmacological prophylaxis because of post-operative bleeding riskCheck my answer