Assume there is a Large$-$Scale Distributed System that requires extremely precise coordination for the nearly simultaneous launch of $2,500$ threads spread evenly across $250$ individual servers. Which of the following technologies is most responsible for launching each thread?

Group of answer choices

Middleware; specifically the "Thread Orchestrator"

Middleware; specifically the "Thread Semaphore"

Operating System; specifically the "Thread Manager"

Operating System; specifically the "Thread Orchestrator"

Boot Manager; specifically the "Thread Orchestrator"