An architect needs to advise the team that manages the identity provider how to differentiate salesforce from other service providers. What SAML SSO setting in salesforce provides this capability?

Universal Containers (UC) uses Salesforce for its customer service agents. UC has a proprietary system for order tracking which supports Security Assertion Markup Language (SAML) based single sign-on. The VP of customer service wants to ensure only active Salesforce users should be able to access the order tracking system which is only visible within Salesforce.
What should be done to fulfill the requirement?
Choose 2 answers

Universal Containers (UC) uses Salesforce as a CRM and identity provider (IdP) for their Sales Team to seamlessly login to intemaJ portals. The IT team at UC is now evaluating Salesforce to act as an IdP for its remaining employees.
Which Salesforce license is required to fulfill this requirement?

Universal Containers (UC) would like its community users to be able to register and log in with Linkedin or Facebook Credentials. UC wants users to clearly see Facebook &Linkedin Icons when they register and login.
What are the two recommended actions UC can take to achieve this Functionality? Choose 2 answers

A farming enterprise offers smart farming technology to its farmer customers, which includes a variety of sensors for livestock tracking, pest monitoring, climate monitoring etc. They plan to store all the data in Salesforce. They would also like to ensure timely maintenance of the Installed sensors. They have engaged a salesforce Architect to propose an appropriate way to generate sensor Information In Salesforce.
Which OAuth flow should the architect recommend?