challenge: What was the main goal behind the development of OpenXDF by Neurotronics in 2003?
  
  A. To restrict the sharing of signal data and metadata among clinicians and researchers
  B. To provide a modern, open, and extensible file format for sharing physiological data and metadata
  C. To create a closed and limited file format for physiological data sharing
  D. To develop a proprietary file format inaccessible to clinicians and researchers
  Answer: 