An old man, not known to have any medical illness that presented with mid back pain, he's taking only aspirin, Calcium, and multivitamins

An old man, not known to have any medical illness that presented with mid back pain, he's taking only aspirin, Calcium, and multivitamins. He's not taking dairy products and on examination he has tenderness in the mid back with mild kyphosis and X-ray show compression Fracture in the vertebra
in, levels what is your Dx??
a. Osteopenia
b. Osteoporosis
c. Osteomalacia