In a Juniper ATP Appliance, What Would Be a Reason

Multiple Choice

In a Juniper ATP Appliance, what would be a reason for the mitigation rule to be in the failed-remove state?

A) The Juniper ATP Appliance received a commit error message from the SRX Series device
B) The Juniper ATP Appliance received an unknown error message from the SRX Series device
C) The Juniper ATP Appliance was not able to communicate with the SRX Series device
D) The Juniper ATP Appliance was not able to obtain the config lock