I contacted airlineapps about the same question and received this response:
We are unable to offer advice on what information to include on a company-specific question. Although all of the airlines ask that applicants be as thorough as possible, if you’d like to write to their recruiting department for clarification of the question, you may do so to: [email protected] .

Regards,
Airline Apps, Inc

You might try the United email. I have not yet...hope it helps.