正解:C
The correct Python code snippet to parse the response from a JSON object and print out the 'simple_time' value would be print(response['body']['simple_time']). This line of code correctly accesses the 'body' key within our response dictionary, then further accesses 'simple_time' key within that nested dictionary to retrieve and print its value. References: Python programming documentation on handling JSON objects would be helpful here as it explains how to parse JSON responses using Python's json module. Additionally, Cisco's Network Programmability with YANG: The Structure of Network Automation with YANG, NETCONF, RESTCONF, and gNMI by Benoit Claise et al., could provide more context on parsing responses in network automation scripts.