The Actionable Relationship Center (ARC) is the premier visualization tool in Salesforce Nonprofit Cloud for mapping complex constituent webs. Unlike a standard related list, which shows data in a flat table format, ARC provides a dynamic, multi-level graph that allows fundraisers and case managers to explore the connections between people, households, and organizations.

Key Capabilities for a Consultant:

Visual Hierarchy: ARC displays nodes representing records (e.g., a Donor, their Spouse, their Employer, and a Foundation board they sit on). Each node can be expanded to show further related records, such as the Foundation's recent grants or the Spouse's individual contact details.

Standard and Custom Relationships: It natively supports the Party Relationship Model used in NPC, including Account-Account Relationships and Contact-Contact Relationships. This allows for the visualization of both professional affiliations and personal family ties in one view.

Direct Interaction: It is "Actionable" because users can perform tasks directly from the graph. A consultant can configure the graph so a gift officer can create a new "Follow-up Task" or "Note" on a related relative’s record without ever leaving the primary donor's page.

Customization via Templates: Consultants can build custom ARC graphs using the ARC Graph Builder in Setup. You can choose which objects appear, what fields are shown in the side panel when a node is clicked, and even add filters to show only "Active" relationships.

While Flexcards (Option A) are used to display data visually, they are generally used for summarizing record fields rather than interactive relationship mapping. The Contact Profile (Option B) is a data storage object for wealth and personal attributes but does not provide the interactive, spider-web style graph that characterizes the ARC experience.