Which solution should an integration architect recommend?

Universal Containers (UC) is a large printing company that sells advertisement banners. The company works with third-party agents on banner initial design concepts. The design files are stored in an on-premise file store that can be accessed by UC internal users and the third party agencies. UC would like to collaborate with the 3rd part agencies on the design files and allow them to be able to view the design files in the community.

The conceptual design files size is 2.5 GB.

Which solution should an integration architect recommend?
A . Create a lightning component with a Request and Reply integration pattern to allow the community users to download the design files.
B. Define an External Data Source and use Salesforce Connect to upload the files to an external object. Link the external object using Indirect lookup.
C. Create a custom object to store the file location URL, when community user clicks on the file URL, redirect the user to the on-prem system file location.
D. Use Salesforce Files to link the files to Salesforce records and display the record and the files in the community.

Answer: B

Explanation:

https://help.salesforce.com/articleView?id=collab_files_connect_share.htm&type=5