using Ms Excel Solver show me the steps to solve the following step by step

Telecommunication Network Building: A basic naive approach will be more expensive if we develop a telecommunication network for the entire city. Using the MST approach in data structures, we can design a communication system at a much lesser cost. The distinction between Naive and MST routing is illustrated in the diagram below.

Question $8$

Telecommunication Network Building: A basic naive approach will be more expensive if we develop a telecommunication network for the entire city. Using the MST approach in data structures, we can design a communication system at a much lesser cost. The distinction between Naive and MST routing is illustrated in the diagram below.