A company uses Opportunism to track sales to their customers and their org has millions of Opportunities. They want to begging to track revenue over time through a related Revenue object.
As part of their initial implementation, they want to perform a one-time seeding of their data by automatically creating and populating Revenue records for Opportunities, based on complex logic. They estimate that roughly 100,000 Opportunities will have revenue records and populated.
What is the optimal way to automate this?

What are three benefits of using declarative customizations over code? (Choose three.)

For compliance purposes, a company is required to track long-term product usage in their org. The information that they need to log will be collected from more than one object and. over time, they predict they will have hundreds of millions of records.
What should a developer use to implement this?

Which statement is true regarding savepoints?

A developer has requirement to query three fields (id, name, Type) from an Account and first and last names for all Contacts associated with the Account.
Which option is the preferred optimized method to achieve this for the Account named 'Ozene Electronics'?