What was the significance of the Tinker v. Des Moines Supreme Court decision? A.
It added new regulations for factories that polluted the water.

B.
It outlawed segregation in schools under “separate but equal.”

C.
It protected freedom of speech and expression for student protests.

D.
It required that all defendants have the right to a government attorney.

C.

Explanation:

Tinker v. Des Moines is a historic Supreme Court ruling from 1969 that cemented students' rights to free speech in public schools. Mary Beth Tinker was a 13-year-old junior high school student in December 1965 when she and a group of students decided to wear black armbands to school to protest the war in Vietnam.

evaluate the extent to which the seven years' war (french and indian war, 1754–1763) marked a turning point in american relations with great britain, analyzing what changed and what stayed the same from the period before the war to the period after it.