Suppose you work at AT&T$,$ an American multinational telecommunications company, and have to categorize the company$$s clients to identify the undesirable clients or$,$ in other words, determine the churn rate. As a data analyst, what would be your task in this case? Select the correct option$/$s from below.

To understand the data available for presenting the research analytics report

To clean and modify the data available so that it fits well for the model

Modify the model for better results and create visual outputs to make the model simple to understand