How to Evaluate a Expression using Multipler switching Circuit

Electronics & Communication Digital Electronics
#1

Implement the following switching function using multiplexer
F(w, x, y, z) = ∑m(0, 7, 11, 15) + ∑d(2, 3, 4, 13)

Please do help.
I cannot understand the use of DontCare Minterms here.