For the following functions, find the minimum sum of products using 4-variable maps with map-entered variables. In (a) and (b), m_i represents a minterm of variables
A, B, C, and D.

(a) F(A, B, C, D, E) = ∑m(0, 4, 6, 13, 14) + ∑d(2, 9) + E(m₁ + m₁₂)

(b) Z(A, B, C, D, E, F, G) = ∑m(2, 5, 6, 9) + ∑d(1, 3, 4, 13, 14) + E(m₁₁ + m₁₂) + F(m₁₀) + G(m₀)

(c) H = A'B'CDF' + A'CD + A'B'CD'E + BCDF'
(d) G = C'E'F + DEF + AD'E'F' + BC'E'F + AD'EF'