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Question 1
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Consider the Boolean expression $ X = \overline{(A + B) \cdot C}$ over two Boolean variables $A$ and $B$. Which one of the following Boolean expressions is equivalent to the given Boolean expression $X$?
A.
$$\overline{A} + \overline{B} \cdot \overline{C}$$
B.
$$\overline{A \cdot B} + \overline{B \cdot C}$$
C.
$$\overline{A} \cdot \overline{B} + C$$
D.
$$\overline{A \cdot B} + \overline{B \cdot C} $$
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