Answer:
The theme which is best revealed by this conflict is B: It is wise to know the enemy you face.
Step-by-step explanation:
Odysseus had pride over his capability, and he thought that he could even defeat all the Gods with his power. This pride had made him arrogant as well. He ignored the fact that Cyclops was unfriendly. He thought Cyclops was a friendly one. His assumptions caused the death of his crew members. They had to face greater force from their enemy than they could handle which led to their death.
If Odysseus hadn't been so arrogant and prepared for the attack, his crew would have been alive.