They'll usually ask you a couple questions related to assess how much of a risk you are.
Like for example, are you drop shipping items (you'd want to say no)
Is anybody else helping you send the items (you say no)
How long will it take for you to send the items out after the buyer purchases it, and how (just say something like the day after I can go to the USPS near my house to send it out)
Those are most of the generic questions that they ask. If the agent isn't very helpful you can hang up and try again, agents aren't created equally so you might have to call a couple times to get a resolution.
Hopefully that helps!