Question: Topic: Feature Engineering A limitation of Forward or Backward ( i . e . stepwise ) Elimination is that ( Select ANY correct answer )

Topic: Feature Engineering
A limitation of Forward or Backward (i.e. stepwise) Elimination is that (Select ANY correct answer)
A.
they do not work on polynominal attributes.
B.
they be computationally expensive algorithms when there are many attributes.
C.
they can get stuck in a local optimum and end the optimization prematurely.
D.
they often fail to find any features worth using.

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