Which two statements are true regarding FortiAnalyzer operating modes? (Choose two.)

Which two statements are true regarding FortiAnalyzer operating modes? (Choose two.)
A . When in collector mode, FortiAnalyzer collects logs from multiple devices and forwards these logs in the original binary format.
B . Collector mode is the default operating mode.
C . When in collector mode. FortiAnalyzer supports event management and reporting features.
D . By deploying different FortiAnalyzer devices with collector and analyzer mode in a network, you can improve the overall performance of log receiving, analysis, and reporting

Answer: AD