How did westward expansion affect Native American tribes? (5 points) a
Native American population declined due to spread of disease from settlers

b
Railroad expansion brought U. S. settlers in contact with buffalo, drastically reducing the amount of this important food source.

c
Native Americans often lost control of their land to settlers

d
ALL OF THE ABOVE

Which best describes the“brain trust” franklin roosevelt promised to make part of his administration? a group of america’s most successful businessmen, who would fix the economya group of hoover’s economic advisers, who would undo previous damage to the economya group of smart advisers, who would assist roosevelt in guiding the nation forwarda group of military veterans, who would assist roosevelt in putting americans back to work