What impact did nonviolent civil disobedience have on the nation? a. It showed that "separate but equal" was probably better for the nation.
b. it showed that black people and white people were equal.
c. It showed that black people and white people could co-exist.
d. It showed the nation that Jim Crow Laws were harsh and that black people were not treated equally.

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling