For the circuit below, answer the following questions: A B C D Clock D A Q 1KO 10 -X Y Z - W (1) When ABCD = 1001, when Clock comes, XYZW (2) When ABCD = 1101, when Clock comes, XYZW (3) When ABCD=0001, when Clock comes, XYZW = (4) When ABCD=0000, when Clock comes, XYZW