Business Finance Homework Help

I’m stuck on a Business question and need an explanation.

Instructions:

Choose a group of three companies for the discussion on the link: http://fortune.com/fortune500/ 

Briefly read about these companies (I have chosen  Group 1 which is no. 1,2,3 – Walmart, Amazon & Apple respectively)

Where are they according to Slide 22? Why? (Discuss all 6 categories; complexity, centralization, formalization, etc.)