A 45-year-old woman is evaluated for heavy menstrual bleeding. She reports having heavy unpredictable bleeding of variable flow and duration for the past year. Her last period was 12 days ago. She has a history of provoked deep venous thrombosis 3 years ago following an intercontinental flight. She is a current smoker with a 10-pack-year history and does not wish to quit smoking at this time. She has never been pregnant and does not wish to become pregnant in the future. On physical examination, vital signs are normal. BMI is 24. Breast and pelvic examinations are normal. Laboratory studies reveal a hemoglobin level of 10.2 g/dL (102 g/L) and mean corpuscular volume of 68 fL. Pregnancy test result is negative. A subsequent evaluation for secondary causes of abnormal uterine bleeding, including endometrial cancer, was negative. In addition to oral iron supplements, which of the following is the most appropriate management?
A. Combination oral contraceptive pill
B. Endometrial ablation
C. Levonorgestrel-containing intrauterine device
D. Medroxyprogesterone acetate for the second half of the menstrual cycle