Refer to the exhibit. What is the correct ncclient method to use to collect the running configuration of a Cisco IOS XE device that uses NETCONF?

The `copy_config()` method is used to copy configuration between datastores (e.g., running to startup), not to retrieve configuration for display or processing.

The `get()` method is used to retrieve operational data (state information) and optionally configuration, but `get_config()` is specifically for configuration data and is more precise when only configuration is needed.

`collect_config()` is not a standard or recognized method within the `ncclient` library for retrieving configuration data.

The `ncclient` library's `get_config()` method directly implements the NETCONF `<get-config>` operation, which is the standard mechanism to retrieve configuration data from a device, and the `source='running'` argument specifies the running configuration datastore.