What is a second purpose of military drill?

The correct choice highlights the significant role military drill plays in enhancing cadet confidence through practical command exercises. Engaging in drill routines enables cadets to practice following and executing commands, which is essential for developing leadership skills and fostering self-assurance. As they become competent in performing these drills, cadets also learn to trust their abilities and the commands of their peers, instilling a sense of confidence that is crucial for success in both military and civilian contexts.

The other options present notions that are not central to the primary purposes of military drill. While relaxation is beneficial and friendships can form in a cadet environment, neither of these elements embodies the core intent of military drill. Furthermore, preparing for academic testing is not a direct function of drill exercises; instead, such drills focus on discipline, precision, and teamwork, which contribute to overall efficacy in various scenarios rather than academic performance specifically. Thus, the emphasis on confidence-building through command execution aptly captures a fundamental objective of military drill.