What type of reporting structure did you work within in previous jobs?

Flexibility. Even if your previous role was reporting to one individual, you want to be sure you are open to a matrix-environment where you are receiving requests from different team leaders and have the ability to prioritize accordingly.

Any hard and fast answer stating you have only ever reported to one person at a time. This would show the interviewer that you may not be able to handle multiple requests.

"In my last role, I reported to the Sales Manager specifically. However, I often assisted other managers as needed and was clear on how to prioritize work."

"In my previous role, I reported within a matrix-environment to the Sales Manager, Marketing Manager, and Advertising Manager, so I am very comfortable reporting to several leaders. I am also able to focus on one leader if the position requires it."