will start the Nessus client in the background so that the Nessus server can be configured?

 While I was typing and researching this question, I found the solution, so I am posting anyway so maybe it helps somebody.

On a Linux device, which of the following commands will start the Nessus client in the background so that the Nessus server can be configured?

A. nessus +

B. nessus *s

C. nessus &

D. nessus -d

The solution is here

https://granneman.com/tech/security/analyticaltools/nessushowto

But not here.

https://docs.tenable.com/nessus/commandlinereference/Content/PDF/CommandLineReference.pdf