Which recommendation should an Architect make in this scenario?

A client’s Heroku web application displays data that is fetchedfrom a back-end file storage system. The client now wants this data to be viewable, but not editable, from their Salesforce org.

Which recommendation should an Architect make in this scenario?
A . Replicate the files to tables in a Heroku Postgres database, and use Heroku Connect to synchronize the tables to the Salesforce org.
B . Store all file URLs in a Heroku Postgres table, and use Heroku Connect to synchronize the table to the Salesforce org.
C . Replicate the files to tables in a Heroku Postgres database, and use Heroku External Objects to expose the tables to the Salesforce org.
D . Replicate the files to the application’s local filesystem, and use worker dynos to periodically sync them to the Salesforce org.

Answer: A