The introduction of the horse provided which of the following benefits to American Indians? i. They could carry numerous things at one time. ii. They could travel greater distances quickly. iii. Horses provided advantages in warfare. iv. Horses could be used in trade.

Horses could carry people and supplies, letting American Indians transport more at once and travel longer distances more quickly. Their speed and mobility also gave riders advantages in warfare, and horses could be exchanged in trade. Thus all four statements are correct, making D, “i., ii., iii., and iv.,” the answer.

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