Which solution will meet these requirements?

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A company runs its application on Amazon EC2 instances and AWS Lambda functions.The EC2 instances experience a continuous and stable load.The Lambda functions experience a varied and unpredictable load.The application includes a caching layer that uses an Amazon MemoryDB for Redis cluster.A solutions architect must recommend a solution to minimize the company’s overall monthly costs.

Which solution will meet these requirements?

Purchase an EC2 instance Savings Plan to cover the EC2 instances. Purchase a Compute Savings Plan for Lambda to cover the minimum expected consumption of the Lambda functions. Purchase reserved nodes to cover the MemoryDB cache nodes.

Purchase a Compute Savings Plan to cover the EC2 instances. Purchase Lambda reserved concurrency to cover the expected Lambda usage. Purchase reserved nodes to cover the MemoryDB cache nodes.

Purchase a Compute Savings Plan to cover the entire expected cost of the EC2 instances, Lambda functions, and MemoryDB cache nodes.

Purchase a Compute Savings Plan to cover the EC2 instances and the MemoryDB cache nodes. Purchase Lambda reserved concurrency to cover the expected Lambda usage.

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