A company's IT department is revising their backup and recovery plan to improve data durability and availability. They want to adhere to the best practices for data backup. Which of the following approaches to data backup and recovery aligns with the widely accepted guidelines?
One copy of data onsite and one copy offsite.
Four copies of data, two on-premises, two offsite.
Three copies of data, on two different media, with one copy offsite.
Two copies of data, all on different cloud providers, none offsite.