Correct Answer: C
Option A is incorrect. Filestore helps provide Google Cloud users with file storage option. However, in the given scenario, object storage offering would be more suitable.
Option B is incorrect. Cloud storage for firebase will be a good choice when looking for scalable storage of user-generated content from apps.
Option C is correct. Cloud Storage is suitable for object storage as required in the given scenario. Furthermore, cloud storage is scalable and suits the solution.
Option D is incorrect. Persistent Disk from Google Cloud offers block storage that is reliable and high performance for Virtual Machines.
https://cloud.google.com/filestore
https://firebase.google.com/products/storage/
https://cloud.google.com/storage
https://cloud.google.com/persistent-disk