VCC 5.0V * ?What is the output of the following circuit Key Space X Y Key Space U3 XOR2 U4 LA VCC AY CA AN 6Y VCC 2Y SA SA SY 5.0V 3Y 4A GND Y 74L S04D VCC U2 5.0V IA VOC 18 48 AY 43 EA 47 28 28 2Y A SND BY 74LS08D Q=0, F=0 O Q=1, F=0 O Q=1, F=1 O Q=0, F=1 O