CompTIA Security+ 2011

I am a college teacher, it's clear to me that 2 month ago, one of my students came to ask me whether it's a wise choice to get a IT certification, which made me think of my 26 years old daughter, who is still an assistant to a department manager.
I suggested her to take the CompTIA SY0-301 exam with the words my student said to me. After a long time talking, she agreed, do you know how happy I was! About 2 days later, my student decided to attend a training class, so I made up my mind to prepare all the things for my daughter. But when I came to tell her that she should to attend the class at night to study the materials, she argued with me! A surprise turned out to be a suffering for me!
She didn't follow my arrangement, instead she bought the study materials on a website seems like this. I cannot understand her wasting of money! As you know, the expense for the training class is really expensive, she had wasted the working I did for her, it's very upset to me and I was no longer to talking to her from then on.
Compared with my student, she was living a easier life for preparing for the exam, I was disappointed about her attitude and felt that she didn't do it by heart, so our relationship was worse than before.  SY0-301 CompTIA Security+ 2011

DRPs should contain which of the following?
A. Hierarchical list of non-critical personnel
B. Hierarchical list of critical systems
C. Hierarchical access control lists
D. Identification of single points of failure
Answer: B