Final answer:
Lev's emotional reaction to Pastor Dan's instruction to run is fear. He is initially bewildered but then comprehends the serious danger he is in, which prompts his fearful response.
Step-by-step explanation:
The emotional reaction of Lev when Pastor Dan tells him to run is b) Fear. In the context of the story, Pastor Dan's unexpected instruction bewilders Lev at first; however, the realization of the gravity of the situation and the danger he is in quickly shifts his bewilderment to profound fear. Lev understands that Pastor Dan's directive is one of urgency and life-saving necessity, prompting his immediate, albeit terrified, compliance.