Triple

Target entity: U.S. Army Network Enterprise Technology Command (regional elements)
Context triple: [Fort McPherson, garrison, U.S. Army Network Enterprise Technology Command (regional elements)]

• A. United States Army Network Enterprise Technology Command chosen
  The United States Army Network Enterprise Technology Command (NETCOM) is a major Army command responsible for operating, securing, and defending the Army’s global enterprise network and communications infrastructure.
• B. Joint Force Headquarters–Cyber (Army)
  Joint Force Headquarters–Cyber (Army) is the U.S. Army component responsible for planning and conducting cyberspace operations in support of United States Cyber Command.
• C. United States Army Cyber Command
  United States Army Cyber Command is a major Army command responsible for conducting cyberspace operations, defending Army networks, and supporting U.S. Cyber Command in digital warfare and information security.
• D. U.S. Army Communications-Electronics Research, Development and Engineering Center
  The U.S. Army Communications-Electronics Research, Development and Engineering Center is a military research organization responsible for developing advanced communications, electronics, and information systems technologies to support Army operations.
• E. U.S. Army Research, Development and Engineering Command
  The U.S. Army Research, Development and Engineering Command was a major Army organization responsible for developing and integrating advanced technologies and systems to enhance the capabilities and effectiveness of U.S. soldiers.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.