Explanation
To set up the new record types for Person Accounts, the administrator should configure Individual Record Type Mapper custom metadata. The Individual Record Type Mapper is a custom metadata type in Financial Services Cloud that defines how records are created when using certain features, such as Einstein Data Capture or Salesforce Inbox. The Individual Record Type Mapper maps Person Account record types to Individual record types, so that when a new Individual record is created from an email or calendar event, it automatically creates a corresponding Person Account record with the same record type. To configure Individual Record Type Mapper custom metadata, you need to go to Setup > Custom Metadata Types > Individual Record Type Mapper > Manage Records and create a new record for each Person Account record type and its matching Individual record type. Verified References: : Salesforce Help Article [8] : Salesforce Help Article [9]

Explanation
The following referral metrics are tracked with custom components included in Financial Services Cloud:
Expressed interests: This metric shows the number of referrals that have a specific expressed interest, such as a mortgage, a credit card, or a checking account. You can use this metric to understand the customer needs and interests that generate the most referrals.
My Top Referrers: This metric shows the top referrers who have created referrals for you, ranked by the number of referrals and the conversion rate. You can use this metric to identify and appreciate your best sources of business.
Referrals Assigned to me: This metric shows the number of referrals that are assigned to you and their status, such as New, In Progress, or Closed. You can use this metric to monitor and manage your referral pipeline and prioritize your follow-up actions. Verified References: : Salesforce Financial Services Cloud User Guide, page 40. : Salesforce Financial Services Cloud User Guide, page 41. : Salesforce Financial Services Cloud User Guide, page 42.

Explanation
The following types of Account-Account relationships are displayed in the Actionable Relationship Center (ARC):
Accounts & Businesses: This type of relationship shows the accounts that are related to a business account, such as owners, partners, or beneficiaries. You can use this type of relationship to understand the ownership structure and financial interests of a business account.
Accounts & Peers: This type of relationship shows the accounts that are related to another account by a peer-to-peer relationship, such as friends, colleagues, or associates. You can use this type of relationship to identify potential referrals and cross-selling opportunities from an account's network.
Accounts & Groups: This type of relationship shows the accounts that are related to a group account, such as household members, trust members, or business group members. You can use this type of relationship to view the aggregated financial data and activities of a group account. Verified References:
Salesforce Help Article 2 : Salesforce Help Article 3 : Salesforce Help Article 4