Which of the analysis, feedback and refinement is the function included in the first two stages?

Analysis is the core function of intrusion detection. The analysis and processing process of intrusion detection can be divided into three phases; build an analyzer to perform analysis on actual field data.

Which of the analysis, feedback and refinement is the function included in the first two stages?
A . Data analysis, data classification, post-processing
B. Data processing, data classification, post-processing
C. Data processing, attack classification, post-processing
D. Data processing, data classification, attack playback

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Answer: B