Please select all true statements about k-nearest neighbors: (Note: Justification is not necessary, but may result in partial credit if the answer is incorrect.) Select all that apply: A Increasing k will generally result in a smoother decision boundary. B Icreasing k will generally reduce the impact of noise or outliers in the data. C Increasing k increases the likelihood of overfitting the data. D It is possible to use cross-validation to select the value of k. E We should never select the k that minimizes the error on the validation dataset. F None of the above.