A network engineer writes a Python script to parse a Cisco Catalyst Center API response. The JSON response is loaded into a variable named 'data' with this structure: {"response": [{"hostname": "edge-sw1", "managementIpAddress": "10.1.1.5", "reachabilityStatus": "Reachable"}]}. Which line of Python correctly assigns the management IP address of the first device to a variable called 'ip'?