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You are required to write encrypted data to Parquet files in Azure Databricks. Describe the process you would follow to ensure that the data is encrypted using Azure Key Vault, including the steps to configure and use the key vault.
A
Use default encryption settings in Azure Databricks and link to any Azure Key Vault.
B
Manually encrypt each file before writing and store keys in Azure Key Vault.
C
Configure Azure Key Vault integration in Azure Databricks, create a key, and use it to encrypt data before writing to Parquet files.
D
Encrypt data using a local key and then upload to Azure Databricks.