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To prevent accidental schema modifications during an append operation in a Delta Lake table, which of the following options should you apply?
A
Manually adjust the schema using ALTER TABLE before appending data
B
Set spark.databricks.delta.schema.autoMerge.enabled to true
spark.databricks.delta.schema.autoMerge.enabled
C
Enable spark.databricks.delta.schemaEnforcement.enabled to true
spark.databricks.delta.schemaEnforcement.enabled
D
Apply mergeSchema option set to false in the write operation
mergeSchema
