SR 10.11 Suppose that the speaker interface and the Philosopher and Dog classes are as described in this section. Are the following sequences of statements allowed in Java? Explain. a. Speaker current = new Speaker(); b. Speaker current = new Dog (); C. Speaker first, second; first new Dog (); second = new Philosopher (); first.speak(); first second; d. Speaker first = new Dog (); Philospher second = new Philosopher (); second.pontificate(); first second; e. Speaker first = new Dog (); Philospher second = new Philosopher(); first second; second.pontificate(); first.pontificate();