A state diagram and the corresponding synchronous sequential circuit using a JK flip-flop and two 2-to-1 MUXes are shown below. Which are the correct inputs to (1) and (2)? A. (1)= don't care, (2)=X B. (1)= don't care, (2)=X' C. (1)=X; (2)= don't care D. (1)=X', (2)= don't care In PROBLEM 4 above, which are the correct inputs to (3) and (4)? A. (3)= X', (4)= don't care B. (3)= don't care, (4)=X' C. (3)= don't care, (4)=X D. (3)=X, (4)=don't care A state diagram and the corresponding synchronous sequential circuit using a JK flip-flop and two 2-to-1 MUXes are shown below. Which are the correct inputs to (1) and (2)? A. (1)= don't care, (2)=X B. (1)= don't care, (2)=X' C. (1)=X; (2)= don't care D. (1)=X', (2)= don't care In PROBLEM 4 above, which are the correct inputs to (3) and (4)? A. (3)= X', (4)= don't care B. (3)= don't care, (4)=X' C. (3)= don't care, (4)=X D. (3)=X, (4)=don't care