What are the valid methodologies for encrypting data on S3?

A.
Server Side Encryption (SSE)-S3, SSE-C, SSE-KMS or a client library such as Amazon S3 Encryption
Client.

B.
Server Side Encryption (SSE)-S3, SSE-A, SSE-KMS or a client library such as Amazon S3 EncryptionClient.

C.
Server Side Encryption (SSE)-S3, SSE-C, SSE-SSL or a client library such as Amazon S3 Encryption
Client.

D.
Server Side Encryption (SSE)-S3, SSE-C, SSE-SSL or a server library such as Amazon S3 Encryption
Client.