1. Which of the following is the dual of the expression A + B C ? (Hint: You can apply distributive rule after taking the dual.) B. OA(B +C) C. O AB+C' D. AB +AC E. O(A + B)C 2. Which of the following is the simplified expression of A B' (A +B+C)(A+B+CJ(A +B C)(A+B'+C) ? (Hint: Apply principle of daulity. Do not forget to take the dual again after simplification in the dual space.) .OA+B. +C' E. OA B c