If you wanted to create a record following the update of another (with data from the source object), what is the most customizable approach?

A developer has written an After Update trigger on Account. A workflow rule and field update cause the trigger to repeatedly update the Account records.
How should the developer handle the recursive trigger?

A developer must create a custom pagination solution for accessing approximately 2000 records and displaying 50 records on each page. Data from Salesforce will be accessed via an API and not via Apex.
How can the developer meet these requirements? (Choose two.)

Which statement should be used to allow some of the records in a list of records to be inserted if others fail to be inserted?

A developer created a Lightning web component that uses a Lightning-record-edit-form to collect information about Leads. Users complain that they only see one error message at a time when they save a Lead record.
Which best practice should the developer use to perform the validations, and allow more than one error message to be displayed simultaneously?