II Simplify the following Boolean function F, together with the don't-care conditions d, and then express the simplified function in sum-of-minterms form, finally draw their logic circuit: F(A, B, C, D) = Σ(5, 6, 7, 12, 14, 15.) d(A, B, C, D) = Σ(3, 9, 11, 15)