What sentiment does Doc White express to students during exam week?

The sentiment expressed by Doc White during exam week is one of encouragement and support, as indicated by his wish for each student good luck. This approach fosters a positive atmosphere that can help alleviate anxiety and boost students' confidence as they prepare for their exams. By wishing students good luck, Doc White demonstrates his commitment to their success and well-being, which can motivate them to perform their best. Providing this kind of support is crucial during stressful times, such as exam week, when students may feel overwhelmed. This encouraging message reinforces the idea that he believes in their potential and is rooting for them, which is an important aspect of effective teaching and mentorship.