Which of the following statements is false?

a. A runnable thread can enter the timed waiting state for a specified interval of time. It transitions back to the runnable state when that time interval expires or when the event it’s waiting for occurs.
b. Timed waiting threads and waiting threads can use a processor, if one is available.
c. A runnable thread can transition to the timed waiting state if it provides an optional wait interval when it’s waiting for another thread to perform a task. Such a thread returns to the runnable state when it’s notified by another thread or when the timed interval expires—whichever comes first.
d. Another way to place a thread in the timed waiting state is to put a runnable thread to sleep—a sleeping thread remains in the timed waiting state for a designated period of time (called a sleep interval), after which it returns to the runnable state.

B