I could not put my opinions into the answer. To put my opinions in the answer would bring a level of uncertainty to how the question would be graded. A question should not be graded about how well you can argue. If the grader accepts the premises you can prove anything true if you are eloquent enough. I was never accused of being eloquent. These questions cannot be about experience. I think that I have more experience on projects than nearly all of my professors. I have been doing software since 1982...That was `82 with basic and assembler. So these guys don`t have anything on me in the way of software experience. I was working professionally in the industry for an educational software company before some of these PhD guys started programming. Anyway I see this question as not a concrete question. It is based on you experience. Some of the students taking this test will have only read about RUP and XP. They may never have worked in the industry. It might be different if others had written on the advantages and disadvantages of each. If someone has written this stuff it is there option and based on experience. Beside, these writings are not on the reading list. An example of perspective is when Kent Beck admits that he writes in the first person because it is his perspective on the ideas in XP in the acknowledgments in the forward of his book Extreme Programming Explained. Larmen in his book Applying UML and patterns goes out of his way to not draw opinion about XP but leaves it up to the reader to draw conclusions. He says that RUP is just a vehicle for presentation about iterative processes for projects that are using OOA/D. I find it reason enough to conclude that this question is unfair if the authors on the PhD reading list avoid such a question.
I have to run to church. It is Easter Morning. My son is getting ready for the Easter Egg Hunt.