Mesh and Star Are Two Types of VPN Topologies

Mesh and Star are two types of VPN topologies. Which statement below is TRUE about these types of communities?

A) A star community requires Check Point gateways, as it is a Check Point proprietary technology.
B) In a star community, satellite gateways cannot communicate with each other.
C) In a mesh community, member gateways cannot communicate directly with each other.
D) In a mesh community, all members can create a tunnel with any other member.