Biology Forums - Study Force

Which of the following best describes a data set?
A) the creation of a computer file that holds the raw data taken from all of the questionnaires deemed suitable for analysis
B) identification of codes that pertain to the possible responses for each question on the questionnaire
C) identification of all the variable names and code numbers associated with each possible response to each question making up the dataset
D) matrix of numbers and other codes that includes all the relevant answers for all respondents in a survey
E) data arranged such that variables are entered horizontally and each respondent's response is on the diagonal

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Thank you so much for taking the time to help me!