Why would a sensor have a status of "Inactive"?

CORRECT TEXT

Why would a sensor have a status of "Inactive"?
A . The sensor has not checked in within the last 30 days.
B . The sensor has been uninstalled from the endpoint for more than 30 days.
C . The device has been put in bypass for the last 30 days.
D . The sensor has been in disabled mode for more than 30 days.

Answer: A