I say its...
Traveling toward the west, the caravan made slow but steady progress.
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Answer:
to set up the central conflict between the families, to invoke feelings of sympathy in the audience, and to inform the audience where the story takes place
Explanation:
Bradford says that each family was given a plot to grow so that the food supply increased. As time passed, everything went well according to plan and the supply of food increased. William Bradford was the governor of the Plymouth Colony, elected 30 times.