Exam OG0-023 topic 2 question 15 discussion

Scenario -
Please read this scenario prior to answering the question
ArchiSurance has a partnership with ArchiBank in which the two companies market each other's consumer offerings to their own customers. Each quarter, the chief marketing officers (CMOs) of the two companies work together to plan the next quarter's promotions. First, they review each other's business objectives related to the partnership. Then, they formulate the co-operative marketing plan. The CMOs determine which offerings they will promote, the characteristics of the target customers, and the timing of each promotion. They assemble their findings into a co-operative marketing plan that Is reviewed separately by the chief financial officer (CFO) of each organization. If either of the CFOs finds a problem, the CMOs must quickly work together to formulate another version of the plan.
The review and reformulation process continues until both CFOs have approved a version of the plan. Then,the CMOs share the plans with their respective operations teams. Each organization's operations team configures the bank's systems toexecute the joint promotions.
The cooperative marketing process is enabled by CRM software delivered as a service (SaaS). The two organizations each use separate logical instances of a multi-tenant customer relationship management (CRM) application hosted by a service provider. Each company's CRM instance is a dedicated function of the same CRM application component. The dedicated functions also share the same multi-tenant database. The component's data access layer is designed with safeguards to keep each company's data separate unless it is intentionally shared.
Each CRM instance has targeting, exchange and outreach sub-functions. The targeting sub-functions select customers based on criteria developed by the CMOs and configured by the operations teams. The exchange sub-functions share the selected customer profiles with each other, and the outreach sub-functions generate promotional email. In this way, each company's CRM system generates a list of target customers that the other company's CRM system uses to send promotional email.
The multi-tenant CRM application component is hosted on a large virtual server complex that is connected via a site network to a physical storage array and a commercial wide-area network (WAN) used by both companies. Both companies access their CRM systems via PCs connected to Local Area Networks (LANs) that are in turn connected to the shared commercial WAN.
Refer to the Scenario -
The new head of IT has asked you to describe how the CRM application supports the partnership, including the CRM application itself, the various application functions and the data flows between them, and the hosting and networking that supports the CRM application.
Which answer provides the best description?