1.  Yes, because Babilonia outlined all of the criteria and points out that her criteria is all correct.

2.  Babilonia changes to an academic like authority, which gives her more credibility.  These references provide a stronger 'ethos' than her own opinions would.

3.  "Celebrity Chef" has two differnect aspects, you need to establish both.  She couldn't take the word "celebrity" for granted.

4.  The process analysis provides the supporting details, and it follows the says that the explanation of a process is valueable to the