Respuesta :

Assuming that this is referring to the same list of options that was posted before with this question, the best option from the list is that "there was a transformation from hunting and gathering to sustained agricultural output", since tools were now being used for farming.   

Answer:

The sickle made it easier to use slash-and-burn farming.

Explanation:

(I'm pretty positive, it's the only one that makes sense.)

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