A 3-bit gray counter is used to control the output of the

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A 3-bit gray counter is used to control the output of the multiplexer as shown in the figure. The initial state of the counter is 000₂. The output is pulled high. The output of the circuit follows the sequence

1. I₀, 1, 1, I₁, I₃, 1, 1, I₂
2. I₀, 1, I₁, 1, I₂, 1, I₃, 1
3. 1, I₀, 1, I₁, I₂, 1, I₃, 1
4. I₀, I₁, I₂, I₃, I₀, I₁, I₂, I₃

Correct Option: A

A₀ is mapped to E of 4 :1 MUX it means when A₀ (E) will be low then MUX will be enabled and as per S₀ (A₁) and S₂ (A₂) will produce the output and when A₀ (E) will be high then 4 :1 MUX will be disabled and disabled output will be 1.