A 30-year-old primigravida at 10 weeks' gestation asks about folic acid supplementation. She has no previous pregnancies or neural tube defect history. According to Canadian recommendations, what dose is appropriate?ANo supplementation is requiredBHigh-dose 5 mg daily for all pregnant womenC0.4-1.0 mg folic acid daily starting at least 2-3 months preconception and through the first trimesterDFolic acid only in the third trimesterETake folic acid once weeklyCheck my answer