Problem: A 60-year-old woman presents with a 1-year history of vaginal dryness and irritation. She has tried many over-the-counter moisturizers and lubricants without relief and eventually has an estradiol vaginal ring placed. Her medical history is unremarkable. When should the ring be replaced? Need Assignment Help? A. 7 days B. 30 days C. 60 days D. 90 days