Explanation:

The correct answer is option 'D', seek().
The seek() method is used to position the file object at a particular position in a file. It allows us to move the file pointer to a specific location within the file.

File Object:
In Python, a file object is used to interact with files. It provides various methods and attributes that allow us to perform actions such as reading, writing, and manipulating files.

Positioning the File Object:
When we open a file, the file object's internal pointer is positioned at the beginning of the file. By default, the file object reads from the beginning of the file.

However, there may be scenarios where we want to read or write from a specific location within the file. This is where the seek() method comes in handy.

Usage of seek() Method:
The seek() method is used to change the position of the file object within the file. It takes two arguments: offset and whence.

- Offset: It specifies the number of bytes to move.
- Whence: It specifies the reference position from where the offset is calculated. There are three possible values for whence:
- 0: Beginning of the file (default)
- 1: Current position of the file object
- 2: End of the file

Example:
Consider the following example:

```
file = open("example.txt", "r")
file.seek(5) # Move file pointer to the 6th byte from the beginning of the file
data = file.read() # Read from the current position
print(data)
file.close()
```

In this example, we open the file "example.txt" in read mode. Then, we use the seek() method to move the file pointer to the 6th byte from the beginning of the file. Finally, we read from the current position and print the data.

By using the seek() method, we can easily navigate to a specific location within a file and perform operations accordingly.