Statements about backup and disaster recovery, Which of the following is correct?

Backup generally builds a backup copy of data through techniques such as snapshots and backups

Disaster tolerance is generally to build a backup host and data for the business in a remote place through replication technology

The cost of backup is usually higher than disaster recovery

Disaster recovery mainly targets business interruptions caused by software and hardware failures and major natural disasters such as tsunamis, fires, and earthquakes