This response indicates an incomplete application of a reasonable strategy. The student correctly chooses Method C as providing a simple random sample and gives a partial justification (this will randomly choose everybody). Independence is not addressed. The justification for why Method A will not provide a simple random sample is correct (some kids get to school early every day). This indicates that early students go to the cafeteria to wait for school to start and they would always be the first 100 to enter the cafeteria, excluding those students who do not arrive at school early. Correct justification is also given for why Method B will not give a simple random sample (it's only for eleventh graders). The response demonstrates a conceptual understanding and analysis of the problem.
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