CPU-Level of Your Security Gateway Is Peaking to 100% Causing

CPU-level of your Security gateway is peaking to 100% causing problems with traffic. You suspect that the problem might be the Threat Prevention settings. The following Threat Prevention Profile has been created. How could you tune the profile in order to lower the CPU load still maintaining security at good level? Select the BEST answer.

A) Set High Confidence to Low and Low Confidence to Inactive.
B) Set the Performance Impact to Medium or lower.
C) The problem is not with the Threat Prevention Profile. Consider adding more memory to the appliance.
D) Set the Performance Impact to Very Low Confidence to Prevent.