The signal$()$ operation using Java condition variables ensures that the thread with the thread number $\_\_\_\_\_\_\_.$

The signal$()$ operation using Java condition variables ensures that the thread with the thread number $\_\_\_\_\_\_\_.$

that is blocked on await$()$ is unblocked

that may be blocked on await$()$ is unblocked

does not block on await$()$ even if it hasn't yet called this function

blocks on await$()$ if it hasn$$t yet called this function