Q61

MCQ2 marks, −0.5

Consider the partial implementation of a $2-bit$ counter using $T$ flip-flops following the sequence $0-2-3-1-0,$ as shown below.

To complete the circuit, the input $X$ should be

(A)

$Q_2^c$

(B)

$Q_2 + Q_1$

(C)

$\left(Q_1 + Q_2\right)^c$

(D)

$Q_1 \oplus Q_2$

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