Consider an audio clip titled 'Calm Before the Storm: Managing Exam Stress.' In it, the speaker suggested deep breathing exercises, establishing a regular sleep schedule, maintaining a balanced diet, and engaging in light physical activity to reduce anxiety during exam periods. What is the main idea conveyed in this recording?
A) The most effective study techniques for academic success.
B) The importance of physical exercise for overall well-being.
C) Practical strategies to cope with and reduce exam-related stress.
D) The link between nutrition and mental clarity during exams.
E) The benefits of adequate sleep for memory retention.