What should go in [REDACTED 1] and [REDACTED 2] here? public interface OnOffable \{ void turnOn(); void turnOff(); public interface Manipulable [REDACTED 1] OnOffable \{ void turn(int x, int y); \} public abstract class Lamp [[REDACTED 2] Manipulable \{ public abstract void install(); public void replace ()\{ \} Implementation / \} public class IKEALamp extends Lamp \{ /* What methods must we implement here? */ a. [REDACTED 1]: Extends, [REDACTED 2]: Extends b. [REDACTED 1]: Implements, [REDACTED 2]: Extends c. [REDACTED 1]: Implements, [REDACTED 2]: Implements d. [REDACTED 1]: Extends, [REDACTED 2]: Implements