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Explain the concept of target encoding for categorical features. Discuss the potential risks associated with this method and how they can be mitigated.
A
Target encoding maps categories to their mean target value, which can lead to overfitting if not handled properly.
B
Target encoding is always unbiased and appropriate for all types of categorical features.
C
Target encoding should not be used for categorical features.
D
Target encoding is only suitable for numerical features.
