You plan to drop the column of a table that has Flashback Archiving enabled. You want to ensure minimal service disruption. How would you do this in your Oracle 12c Database?

Disabling and re-enabling Flashback Archiving interrupts archiving continuity and introduces unnecessary service disruption, which contradicts the minimal disruption requirement.

Disabling Flashback Archiving before dropping the column is the pre-12c workaround and causes archiving continuity loss - it is unnecessary in Oracle 12c.

Disassociating the Flashback Archive before a column drop is not required in Oracle 12c, which natively supports DDL on FDA-enabled tables without manual disassociation.

Oracle 12c introduced support for DDL operations - including ALTER TABLE DROP COLUMN - on tables with Flashback Data Archive (FDA) enabled. The database automatically manages the FDA metadata to reflect the column removal, eliminating the need for manual archive disabling and providing minimal disruption.

Like choice C, disassociating the Flashback Archive adds unnecessary steps and potential disruption; Oracle 12c handles this internally when you use ALTER TABLE directly.