How to choose the root bridge in the spanning-tree? 05/27/2018 – by Mod_GuideK 0 How to choose the root bridge in the spanning-tree? A. Highest MAC address B. Lowest Mac address C. Other Option SHOW ANSWERSCorrect Answer: B Explanation/Reference: Reference: Cisco STP selection process: http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/5234-5.html