Which detail from the hobbit develops the theme of blind greed in the story?

b. they require a huge investment of time, dedication ,training, and patience almost from the day they are born.

explanation:

the sentence gives a clear evidence of how carefully the sar dogs are selected and also specify from what time this exercise begins."almost from the day they are are born." this sentence shows as that this exercise begins early.

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the statement flat characters usually only have one trait that is developed in their story lines is true.