Which of the Following Is NOT True Regarding Conditional Variable

Multiple Choice

Which of the following is NOT true regarding conditional variable, e.g. x?

A) The only operations that can be invoked on a condition variable are wait() and signal()
B) x.wait() means that the process invoking this operation is suspended until another process invokes x.signal()
C) The x.signal() operation resumes exactly one suspended process
D) If no process is suspended, then the signal() operation still affects the state of the semaphore