For Which Patient Would Intravenous Ibandronate (Boniva)be a Better Choice

For which patient would intravenous ibandronate (Boniva) be a better choice of drug therapy for osteoporosis instead of the oral form of the drug?

A) 66-year-old woman whose osteoporosis is severe has not responded to oral therapy.
B) 64-year-old woman who runs 5 miles daily and has type 2 diabetes mellitus.
C) 70-year-old woman who is undergoing radiation therapy for breast cancer.
D) 58-year-old woman who has early stage Alzheimer's disease.