Sourcing Route optimization

Please elaborate on a brief and clear description, using more than 150 words, of the topic assigned according to the table below.

Sourcing Route optimization

Reply to two classmates, using more than 100 words, who have posted about two different topics than yours. I highly suggest using trustable bibliographic sources like

Transportation (8th Edition) by Coyle, Novack, Gibson, & Bardi

Chapter 10 of the book around page 346