Correct Answer : Option (B) - 20 October
The World Osteoporosis Day (WOD) is observed globally on 20 October. The day is celebrated to raise global awareness of the prevention, diagnosis and treatment of osteoporosis and metabolic bone disease. WOD is organized by the International Osteoporosis Foundation (IOF), by the launch of a year-long campaign with a specific theme. WOD aims to make osteoporosis and fracture prevention a global health priority by reaching out to health-care professionals, the media, policymakers, patients, and the public at large.