(apex) which statement accurately summarizes how americans' civil liberties changed as a result of 20th-century supreme court rulings?
a. students accused of crimes on school property gained substantial privacy rights.
b. law enforcement agents were forced to recognize more liberties for accused criminals.
c. those accused of crimes generally lost their right to a reasonable expectation of privacy.
d. free speech rights were strictly limited for those accused of advocating criminal activity.

D. Free speech rights were strictly limited for those accused of advocating criminal activities.  

Explanation:

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

an interest group is an organization whose members share common concerns, and try to influence government policies that impact those concerns. elected officials frequently complain about the influence of "special interests" on american politics.