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ISRO 2008- ECE Odd parity

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This question can lead to wrong answer if we take only 2 bits input for parity generation. The circuit for odd and even parity generation is same with just a little modification. 

So answer is option B) XOR

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Odd / Even parity generator , both uses XOR gate

In odd parity generator no. of XOR gates = n-1

n: for n bit parity generator
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