Exam 300-435 topic 1 question 82 discussion

Refer to the exhibit. A Python script has been created that calls the Cisco SD-WAN vManage Device Inventory API to get the list of vEdges. The JSON data that returns to a Python dictionary has been converted and assigned to a variable named `d`. A portion of the JSON is shown in the exhibit. Which code will complete the expression hostname= to access the hostname?