What option is available to an App Builder when defining an object-specific Create Record custom action? Choose 2 answers

An App Builder is loading the data into salesforce. To link the new records back to the legacy system, a field will be used to track the legacy ID on the account object. For future data loads this ID will be used when upserting records. Which field attribute should be selected? Choose 2 answers

Which two statements are true about an External ID field? Choose 2 answers

Northern Trail Outfitters uses a custom object to track travel requests. Rangers want to have automatic posts on a record whenever a travel request has been approved.
Which feature should be used to accomplish this?

Which statement is true when using record types to control picklist value. (Select 2)