Answer:
O They used horses to hunt more efficiently and to increase the size of the areas they occupied.
Explanation:
According to the excerpt, what is true regarding the Plains Indians is that they used horses to hunt more efficiently and to increase the size of the areas they occupied.
The Plain Indians are known as the Native American tribes who lived on the Great Plains. They are known for the horse cultures.
The use of the horse enabled them to gain their livelihood through the available limitless bison herds. With the use of the horse, they travelled faster and farther to search for bison herds and made use of the horses to transport goods.
With the use of the horse, they acquired more areas from neighboring regions and increased the area they traded.
