Final answer:
The method used to temporarily release time for other threads is 'yield'. The 'yield' method signals to the thread scheduler that the current thread is willing to pause its execution to allow other threads to execute, but does not guarantee that the current thread will stop immediately.
Step-by-step explanation:
The method of the Thread class used to temporarily release time for other threads is B.) yield.
The yield method is a static method that causes the currently executing thread object to temporarily pause and allow other threads to execute. It's important to note that the yield method does not guarantee that the current thread will stop executing immediately. Instead, it signals to the thread scheduler that the current thread is willing to yield its current use of a processor. The thread scheduler is then free to ignore this hint or to act upon it and give CPU time to other threads, thus facilitating smoother thread execution.
Option A, sleep, causes the currently executing thread to stop executing for a specified period of time. Option C, pause, does not exist in the Thread class. Option D, join, allows one thread to wait for the completion of another.