A 62-year-old woman has microcytic anaemia with Hb 92 g/L, MCV 72 fL and low ferritin. She reports new fatigue and no obvious menorrhagia. According to Canadian recommendations, what is the most appropriate next step?AStart oral iron and attribute anaemia to ageBOrder colonoscopy and upper GI evaluation for occult blood lossCTransfuse red blood cells immediately to Hb >120 g/LDStart erythropoiesis-stimulating agentEReassure and recheck CBC in 1 yearCheck my answer