What is the main purpose of paragraphs 4-5 in Document C? A to explain how pyramid builders were buried
B to show that pyramid builders were hard workers
C to provide evidence for the claim that slaves did not build the pyramids
D to explain how pyramid builders were poor Egyptians

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design