Refer to the exhibit. Which code results in the working Python script displaying a list of network devices from the Cisco DNA Center?

The `network_device_list` function would typically retrieve the list of devices, but attempting to call it without first performing an authentication step would result in an unauthorized access error.

The `dnac_login` function is responsible for authenticating with the Cisco DNA Center API using the provided host, username, and password. Establishing a successful login session and obtaining an authentication token or session object is a mandatory prerequisite before any subsequent API calls, such as fetching a list of network devices, can be made.

This option is identical to option B, which is the correct choice, but the prompt designates B as the distinct correct answer.

Similar to option A, calling `network_device_list` directly without an established authenticated session would fail to retrieve device information.