08 is legally impaired and it is illegal to drive at this level. You will probably believe that you are functioning better than you really are. 0.10-0.125 BAC: Significant impairment of motor coordination and loss of good judgment. Speech may be slurred; balance, vision, reaction time and hearing will be impaired.
B is the best option. If her friends keep pressuring her to do something she is uncomfortable then she should find new friends. Don't pretend be something your not people should accept Bertha for what she is not for what she drinks.