How do you achieve this on the Integration branch?

A client has an in-house design team which manages content on their Magento Commerce Cloud project. This content is rapidly changing and they would like the ability to maintain their own stylesheets in a structured way without affecting site uptime.

How do you achieve this on the Integration branch?
A . Modify the writeable directories on the Integration Environment by using the .magento.env.yaml file.
B . Add a custom command to the build hook in the .magento.app.yaml file to retrieve the stylesheets from a client hosted location.
C . The Magento Infrastructure Team needs to create a writable directory in which the stylesheets can be uploaded.
D . Use the .magento.app.yaml file to create a mount in the pub directory.

Answer: D