Christian Za Is Using the Holdout Method to Partition His

Multiple Choice

Christian Za is using the holdout method to partition his data into two independent and mutually exclusive sets: 75% in a training set and 25% in a validation set. Based on an R² value of 0.4532 and RMSE of 0.3268 for the training set and an R² value of 0.1426 and RMSE of 0.5371 for the validation set, which of the competing models is the preferred model?

A) The validation data set would be the preferred model.
B) The training data set would be the preferred model.
C) Both models are preferred models.
D) There is not enough data to determine the preferred model.