Which statements are correct?

Which statements are correct?
A . SAP Solution Manager is the possibility of quick setups of additional systems in a system landscape
B . SAP Solution Manager enables the comparison of customizing between one source and
one target system to compare customizing before and after distribution (customizing scout).
C . SAP Solution Manager reduces manual synchronization efforts by providing automatic distribution of customizing into various systems at the same time, and central management of all customizing synchronization requests
D . SAP Solution Manager offers functionality for supporting you in synchronizing your customizing settings

Answer: A,C,D