Refer to the exhibit. What does the snippet of code achieve?

Refer to the exhibit. What does the snippet of code achieve?

A. It creates an SSH connection using the SSH key that is stored, and the password is ignored. B. It creates a temporary connection to a Cisco Nexus device and retrieves a token to be used for API calls. C. It opens an ncclient connection to a Cisco Nexus device and maintains it for the duration of the context. D. It opens a tunnel and encapsulates the login information, if the host key is correct.