Match List - I with List - II.

1. A(A)-(II), (B)-(IV), (C)-(I), (D)-(III)
2. B(A)-(IV), (B)-(II), (C)-(III), (D)-(I)
3. C(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
4. D(A)-(IV), (B)-(I), (C)-(II), (D)-(III)

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Show answer & explanation

Correct answer: C. (A)-(II), (B)-(I), (C)-(IV), (D)-(III)

Explanation

An N-bit ring counter cycles through exactly N states; a synchronous counter clocks all flip-flops together; an asynchronous (ripple) counter applies the clock only to the first flip-flop; a decade counter counts 0 to 9.