# ✅ Quiz M7.03
```{admonition} Question
How to evaluate and tune the hyperparameters of a model?
- a) Fit the model on the train set, set the parameters using the test set, and
evaluate the model on the same test set
- b) Fit the model on the train set, set the parameters using a validation set,
and evaluate the model on the test set
- c) use a nested cross-validation, with an inner cross-validation to tune the
parameters of the model and an outer cross-validation to evaluate the model's
performance
_Select all answers that apply_
```