Question: What should you do to only preserve the two most recent changes of a field in a data warehouse? Overwrite old values with new ones

What should you do to only preserve the two most recent changes of a field in a data warehouse?

Overwrite old values with new ones

Add two new fields. One stores the earliest value, and the other stores the immediately previous value before the change

Add one new field that stores the immediately previous value to the table

Add one new row with the new value to the table

Add two new rows with the new value to the table

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