In the scenario where both parties are not aware of each other's needs, the best option for resolving the conflict would be Option B: Collaboration.
Collaboration involves open communication and cooperation to understand the underlying needs and interests of both parties. It focuses on finding a solution that satisfies the needs of everyone involved, which is particularly important when neither party is aware of the other's needs. This approach encourages dialogue, fosters understanding, and can lead to a mutually beneficial resolution.
In contrast, accommodation may ignore one's own needs, compromise might lead to a solution that still leaves both parties partially unsatisfied, and avoidance does not address the conflict at all. Therefore, collaboration is the most effective strategy in this situation.