Which action solves the problem?

Refer to the exhibit.

A network engineer must manage the network devices. The engineer prepares a Python scripts to authenticate to the Cisco to DNA Center API and request a device list. The device request fails and returns errors code 401.

Which action solves the problem?
A . Update the API UR
B . which matched the API endpoint for device list.
C . Send the request to another network in case there are reachability Issues.
D . Send the Authentication header In the request with a valid configuration.
E . Update the credentials that are already supplied and retry the request

Answer: D