Publish Online - Multiple Users and Updating Published Docs

I'd like some clarification on workflow and users when using Publish Online. I am an independent freelancer and have my own Adobe CC account. I have created an annual report for a client. It seems my options are:

A) Publish it using my Adobe CC account, which would mean my client couldn't update the file later on their own and I would need to keep my Adobe account active to keep the file live at the same link.

or

B) Set up the file on a shared system such a Dropbox so either of us can access the file and update it as needed, but have my client actually publish it on their end under their Adobe CC account. In the future either of us could make updates to the artwork but they would always have to be the one to push it live.

or

C) Sign in w/ their Adobe ID on my computer and publish the document for them. (I don't know if this is even allowed by Adobe? And I don't know that my client would want to share their user info anyway)

Is that correct?

Is there any other option for collaborating on a Publish Online document between multiple Adobe IDs?

Thanks.