Answer:
Tommy decides to become the captain and order Jack to walk the plank because he is frightened of walking the plank himself. He is also clearly tired of taking orders from Jack , as evidence by his response to Jacks order to hand over the cookies. Tommy must have been taking Jacks orders for a while , since Jack is always captain. this may suggest that Tommy ordered Jack to walk the plank as revenge for his earlier unfairness
Explanation:
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