Triple

Target entity: International Space Station
Context triple: [Umberto Guidoni, visited, International Space Station]

• A. International Space Station chosen
  The International Space Station is a permanently crewed modular space laboratory in low Earth orbit that serves as a multinational research facility and technology testbed.
• B. Russkaya Station
  Russkaya Station is a former Soviet and Russian research base in Antarctica used primarily for scientific studies of the polar environment and climate.
• C. International Space Station program
  The International Space Station program is a multinational collaborative effort to design, build, and operate a permanently crewed orbital research laboratory in low Earth orbit.
• D. Russian space station Mir
  The Russian space station Mir was a modular, long-duration orbital research outpost that served as the centerpiece of Soviet and later Russian human spaceflight from the mid-1980s until its deorbit in 2001.
• E. Orbital Workshop
  Orbital Workshop was the main habitable module of NASA’s Skylab space station, providing living and working space for astronauts during America’s first long-duration missions in orbit.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.