1. Which of the following might have negatively impacted Christopher's test preparation?
C. In the week leading up to the exam, Christopher skipped his regular workouts, replacing them with extra study sessions.
A. He used positive self-talk, which likely gave him a false sense of security.
D. He joined a study group instead of studying independently.
B. He chose to get a good night's sleep the night before instead of staying up to cram.