What are the three major features that SBAA offers over standard salesforce approvals? (Choose 3)

Universal Containers (UC) created a Custom Action called Add Subscriptions and a Search Filter for Products flagged as subscription Products.
How can UC ensure that sales reps are restricted to subscription Products when the reps click on the Custom Action called Add Subscriptions?

The products sold by Universal Containers (UC) have a Product Family of Hardware or Software. Each Quote should only contain one of the Product Families. At the time of Quote creation, the sale rep is required to populate a custom picklist with the API name Family__c with values of Hardware and Software.
If the sales rep selects Hardware for the Family__c field, the rep should only be able to add Products with the Product Family of Hardware to the Quote. The same premise applies for the value Software for the Family__c field.
How should the Admin meet this requirement?

Universal Containers wants to default the value of the Location process input based on the location determined on the Quote. How should the Admin fulfill this requirement?

What additional field is required for all records when using Approval Variables vs. Summary Variables?