Which of the following configuration changes can be used to reduce the number of alerts generated overall for a Service? 

Edit each Service policy to increase the Tolerance slider for Low and High alerts. 

Edit each Service policy and set a noise floor to specify the minimum amount of change that the policy can treat as deviation from normal behavior. 

Edit the Service and select fewer metrics to monitor for each segment that comprises the Service. 

Modify the location host group type used for monitoring end user traffic to use fewer groups (for example, Region instead of Site). 

A, B, C, and D. 

A and B only.