Which solution should a data architect recommend as an archiving solution?

Universal Containers (UC) has implemented Salesforce, UC is running out of storage and needs to have an archiving solution, UC would like to maintain two years of data in Saleforce and archive older data out of Salesforce.

Which solution should a data architect recommend as an archiving solution?
A . Use a third-party backup solution to backup all data off platform.
B . Build a batch join move all records off platform, and delete all records from Salesforce.
C . Build a batch join to move two-year-old records off platform, and delete records from Salesforce.
D . Build a batch job to move all restore off platform, and delete old records from Salesforce.

Answer: A