two discuss question

Please study the Harvard Business Case "Showrooming at Best Buy" (available at https://hbsp.harvard.edu/import/748480), and discuss the following questions: 

4b. Summarize the approaches of other brick-and-mortar retailers use to combat the 

showrooming issue. (3pts)

4c. Should Best Buy follow other retailers ways or do something differently to deal with the showrooming issue? Please explain the reasons in detail. (3pts)