Which of the following functions can be performed by the datetime tool?

The datetime tool in Alteryx is specifically designed for handling various operations on date and time values, and one of its capabilities is to convert a date value to the day of the week. This function allows users to take a date input and retrieve the corresponding day (e.g., Monday, Tuesday, etc.), which can be useful for various data analysis tasks, such as analyzing trends based on days of the week.

While other options represent activities that can also be performed with date values, they may not be specifically managed by the datetime tool in the same direct way. For example, formatting a date as text or comparing two date values may involve the use of additional tools or functions in Alteryx. It's important to understand that while those tasks are possible, they do not exemplify the primary function of the datetime tool as clearly as converting a date to its corresponding day of the week does.