Answer:
Difficulty in achieving Effective communication and peculiar method of Conflict resolution
Step-by-step explanation:
The biggest challenge in problem-solving and conflict resolution is "Difficulty in achieving Effective communication and peculiar method of Conflict resolution."
This is because in trying to solve a problem or resolve conflict clear communication is needed.
Without clear communication, it would be difficult to resolve a conflict as there be drawbacks in finding or understanding the main issues or cause of conflicts.
And at the same time, the inability to pick a proper method of conflict resolution, either mediation, collaboration, negotiation, etc, that matches the situation would be difficult to resolve the problem.