When Deploying SandBlast, How Would a Threat Emulation Appliance Benefit

When deploying SandBlast, how would a Threat Emulation appliance benefit from the integration of ThreatCloud?

A) ThreatCloud is a database-related application which is located on-premise to preserve privacy of company-related data
B) ThreatCloud is a collaboration platform for all the CheckPoint customers to form a virtual cloud consisting of a combination of all on-premise private cloud environments
C) ThreatCloud is a collaboration platform for Check Point customers to benefit from VMWare ESXi infrastructure which supports the Threat Emulation Appliances as virtual machines in the EMC Cloud
D) ThreatCloud is a collaboration platform for all the Check Point customers to share information about malicious and benign files that all of the customers can benefit from as it makes emulation of known files unnecessary