Federal acts of the 1960s and 1970s that affected American Indians living in Oklahoma included the 1968 Indian Civil Rights Act and the
A. 1968 Indian Voters Act
B. 1972 Indian School Integration Act
C. 1975 Indian Self-Determination and Education Assistance Act
D. 1977 Oklahoma Indian Reservation Aid Act

C. 1975 Indian Self-Determination and Education Assistance Act.

Explanation:

I got it right on Ed.

I double checked after I was down with my text to see that C is correct.

disequilibrium means that either supply is greater than the demand for an available good, or that the demand for a product outstrips the available supply. it implies that the price for a is either too low creating large demand, or too high creating a large surplus of supply.