Final answer:
The best description of the conflict where a student is atop a challenging ski slope and fearful is an Individual vs. Self-conflict, as it deals with internal struggles of fear and pride.
Step-by-step explanation:
The conflict in the situation where a student finds themselves atop a double black diamond icy slope, fearful but not wanting to appear cowardly, is best described as Individual vs. Self. This type of conflict involves a struggle within the character's mind. They are dealing with their fears and insecurities, weighing their safety against the fear of embarrassment. It's an internal debate on whether to prioritize their comfort zone or plunge into a challenging and potentially dangerous situation.