A. Create a new MACsec secret key that uses an AWS Key Management Service (AWS KMS) AWS managed key. Associate the new pre-shared key, Connection Key Name (CKN), and Connectivity Association Key (CAK) with the connection.
B. Create a new MACsec secret key that uses an AWS Key Management Service (AWS KMS) customer managed key. Associate the new pre-shared key, Connection Key Name (CKN), and Connectivity Association Key (CAK) with the connection.
C. Modify the existing MACsec secret key. Re-associate the existing pre-shared key, Connection Key Name (CKN), and Connectivity Association Key (CAK) with the connection.
D. Modify the existing MACsec secret key. Associate the new pre-shared key, Connection Key Name (CKN), and Connectivity Association Key (CAK) with the connection.

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