You need to migrate an internal file upload API with an enforced 500-MB file size limit to App Engine.
What should you do?
A. Use FTP to upload files.
B. Use CPanel to upload files.
C. Use signed URLs to upload files.
D. Change the API to be a multipart file upload API.
Reference: https://wiki.christophchamp.com/index.php?title=Google_Cloud_Platform