Which of the Following Are Not Steps in a Typical

Which of the following are not steps in a typical machine-learning case study?

A) loading the dataset and exploring the data with pandas and visualizations
B) transforming your data (converting non-numeric data to numeric data because scikit-learn requires numeric data) and splitting the data for training and testing
C) creating, training and testing the model; tuning the model, evaluating its accuracy and making predictions on live data that the model hasn't seen before.
D) All of the above are steps in a typical machine-learning case study.