Triple

Target entity: Internet Research Task Force
Context triple: [Crypto Forum Research Group, partOf, Internet Research Task Force]

• A. Internet Research Task Force chosen
  The Internet Research Task Force is an organization that promotes long-term research and experimentation related to the evolution and technical development of the Internet.
• B. Internet Engineering Task Force
  The Internet Engineering Task Force (IETF) is an open, international standards organization that develops and promotes voluntary technical standards, particularly those that make up the core protocols and architecture of the Internet.
• C. Internet Security Research Group
  The Internet Security Research Group is a nonprofit organization focused on improving internet security and privacy, best known for running the free, automated certificate authority Let's Encrypt.
• D. IETF Internet Research Task Force
  The IETF Internet Research Task Force (IRTF) is an organization that promotes long-term research on Internet protocols, architecture, and applications through focused research groups operating alongside the Internet Engineering Task Force.
• E. Internet Engineering Steering Group
  The Internet Engineering Steering Group (IESG) is the body within the Internet Engineering Task Force responsible for technical management of IETF activities and the approval and publication of Internet standards.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.