Persecution of the christians reached its worst in 250 a. d. what happened?

a) christians were ridiculed throughout the roman empire.

b) christians were prohibited from leaving judea.

c) christianity was outlawed and anyone refusing to worship roman gods could be killed.

d) christianity could be practiced only if churches paid a huge tax to the emperor.

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: