The correct expression is

• A. \(\bar AB +A\bar B=\overline{(AB)} (A+B)\)
• B. A̅ B+ A̅ B = AB(A̅ + B̅)
• C. A̅ B + AB̅ = AB(A̅ + B̅)
• D. \(\bar A B + \bar A B =\overline{AB}(A+B) \)