The dual of A + B + C is
A. A.B.C
B. $$\left( {\overline {\text{A}} + \overline {\text{B}} } \right) + \overline {\text{C}} $$
C. $$\left( {\overline {\text{A}} + \overline {\text{B}} } \right).\overline {\text{C}} $$
D. A + B.C
Answer: Option A
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