The state diagram of a Moore machine is shown below. This machine has one input (a), if we design its circuit by using two D-Flip Flops, which option will be the flip flops input equations? 9,90 = (00 (11 1 1 0 0001 10 Select one: O a. Dl=ql'qo'a + qlqa', DO=q1q0'a' + ql'qo'a + qi'qoa' + qlq0a O b. Di=q1q0+ qlqa , DO=qla' + ql'a+qi'qo'a + ql'qoa' O c. Di=q1qo'a + glqa' , DO=q0'a' + qi'qo'a + qilqa' + qlqa O d. Di=q1'90 + qla', DO=q1q0'a' + ql'qu'a e. None