The correct answer is B. boolean.
A boolean data type is a data type that can hold either a true or false value. It is used to represent logical values, such as whether a condition is true or false.
A string data type is a data type that can hold a sequence of characters. It is used to represent text, such as a name or a sentence.
A variant data type is a data type that can hold any type of data. It is used to represent data that is not known at compile time.
A date data type is a data type that can hold a date and time value. It is used to represent a specific point in time.
Here is a table that summarizes the different data types:
| Data type | Description |
|—|—|
| boolean | A data type that can hold either a true or false value |
| string | A data type that can hold a sequence of characters |
| variant | A data type that can hold any type of data |
| date | A data type that can hold a date and time value |