When submitting Amazon SageMaker training jobs using one of the built-in algorithms, which common parameters MUST be specified? (Choose three.)

When submitting Amazon SageMaker training jobs using one of the built-in algorithms, which common parameters MUST be specified? (Choose three.)
A . The training channel identifying the location of training data on an Amazon S3 bucket.
B . The validation channel identifying the location of validation data on an Amazon S3 bucket.
C . The IAM role that Amazon SageMaker can assume to perform tasks on behalf of the users.
D . Hyperparameters in a JSON array as documented for the algorithm used.
E . The Amazon EC2 instance class specifying whether training will be run using CPU or GP
G . The output path specifying where on an Amazon S3 bucket the trained model will persist.

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Answer: AEF