Q7

MCQ1 mark, −0.33

Which one of the following regular expressions represents the set of all binary strings with an odd number of $1’$ s?

(A)

$((0+1)^*1(0+1)^*1)^*10^*$

(B)

$(0^*10^*10^*)^*0^*1$

(C)

$10^*(0^*10^*10^*)^*$

(D)

$(0^*10^*10^*)^*10^*$

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