Which of the following is true about the COMPRESS=YES data set option?

Which of the following is true about the COMPRESS=YES data set option?
A . It is most effective with numeric data that represents large numeric values
B . It is most effective with character data that contains patterns, rather than simple repetitions
C . It uses the Ross Data Compression method to compress numeric data
D . It is most effective with character data that contains repeated characters

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Answer: D