Nut milk has the best idea, but I can't get my head around the amount of time she's been running her business.
How can you build something worth £250k investment in only 3 months? You have to apply to be on the show 6 months before they start filming! It's like she's done her own extended...
Taking inspiration from CMS, I think Sabrina is the Apprentice Labrador. Runs around enthusiastically huffing and puffing and keeps coming back no matter how many times you kick her, ultimately very irritating and that's why nobody listens to her.
They're not allowed phones or internet, all that stuff is taken from them at the start of the process. I think contact with the outside world is also limited.