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