Why were the Indians' food sources shrinking in
the 1840s and 1850s?
A. The tribes had been forced off their hunting grounds so they
couldn't get to all of the game.
B. A drought had destroyed the grass, so there was no food for the
game.
C. The white settlers traveling through ate the game and their
cattle ate the grass.

A drought had destroyed the grass, so there was no food for the game.

Explanation:

In the early years of colonization, thousands of Indians died from disease. Colonists crowded the Indians off their hunting grounds, which led to conflict and war. These conflicts escalated during the 1800s as settlers moved west.

the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.

this is a good question! i'll do some research and come back when i have the answer!