Question: A study was conducted using a representative sample method. Which of the following about the study is true? Group of answer choices A .Entry is
A study was conducted using a representative sample method. Which of the following about the study is true?
Group of answer choices
A .Entry is based on exposure status.
B. Eligibility criteria was used.
C. Each subject had an equal probability of being selected into the study
D. Goal of the study is causal identification
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