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You are developing a machine learning model based on linear regression with over 100 input features. All feature values range between -1 and 1. You hypothesize that many of these features do not contribute meaningful information to the model's predictions. To streamline the model, you wish to remove these non-informative features while retaining the important ones in their original form. Which technique should you use?
A
Use principal component analysis (PCA) to eliminate the least informative features.
B
Use L1 regularization to reduce the coefficients of uninformative features to 0.
C
After building your model, use Shapley values to determine which features are the most informative.
D
Use an iterative dropout technique to identify which features do not degrade the model when removed.