Correct Option : D
All the methods given below is provided by Object class
clone() - Creates and returns a copy of this object.
equals() - Indicates whether some other object is "equal to" this one.
finalize() - Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
getClass() - Returns the runtime class of an object.
hashCode() - Returns a hash code value for the object.
notify() - Wakes up a single thread that is waiting on this object's monitor.
notifyAll() - Wakes up all threads that are waiting on this object's monitor.
toString() - Returns a string representation of the object.
wait() - Causes current thread to wait until another thread invokes the notify() method
or the notifyAll() method for this object.