The correct option is A Seattle
The Indo-US joint military exercise Vajra Prahar 2018 was held at Joint Base Lewis-McChord (JBLM) in Seattle, in which a 45-member Special Forces team from Indian Army's Southern Command trained alongside US soldiers in the third week of January. The aim of the exercise was to promote military relations between the two countries by enhancing interoperability and mutual exchange of tactics between Special Forces. The objectives of the joint training were to share the best practices between the two armies and to develop joint strategies by sharing the expertise of conducting operations in a counter-insurgency and counter-terrorism environment while capitalising on the rich repository of experiences of each other armies.