Am I working for one person or firm only?

Hello, I am currently attempting to register for self-assessment online. I have come across the question "Are you working for one person or firm only?" and I am unsure what my answer should be. I work for employer A as a PAYE, and for employer B as self-employed for which I need to fill in self assessments (thus only one firm for the purposes of self assessment). Should my answer to whether I only work for one firm be Yes or No? Many thanks in advance!

Hi,
If your self employment it is for one company only then you would answer yes. 
Thank you.