What step should the deployment professional take to ensure that good results are returned and that no alarms are raised?

A deployment professional is about to execute Server Discovery to populate the Host Definition Building Blocks. The deployment professional is working in a monitored environment and does not wish to set off any network scanner alarms.

What step should the deployment professional take to ensure that good results are returned and that no alarms are raised?
A . Warn the network monitoring team that QRadar is about to run a network port scan
B . Set the ‘Passive discovery’ flag in Advanced System Settings in the Admin tab
C . Ensure that events from the relevant servers are being collected successfully
D . Ensure that the flow sources are configured correctly and collecting data

Answer: B