A developer is writing an application in Python. The application runs on AWS Lambda. The application generates a file and needs to upload this file to Amazon S3.
The developer must implement this upload functionality with the least possible change to the application code.
Which solution meets these requirements?

A. Make an HTTP request directly to the S3 API to upload the file.
B. Include the AWS SDK for Python in the Lambda function. Use the SDK to upload the file.
C. Use the AWS SDK for Python that is installed in the Lambda environment to upload the file.
D. Use the AWS CLI that is installed in the Lambda environment to upload the file.