It's not always easy to make the right decisions. Are you a gambler? If you're offered 1 btc without playing or 5 btc by playing (with a chance of 2 to 1). What do you do?
By the way, a very interesting and unusual question. It's rare to find a theme that's unusual. This is exactly the case.
My answer will be short. I would still choose one bitcoin. Because if I chose 5 and didn’t win, I would greatly regret it. We have a saying: “Better a bird in the hand than a pie in the sky.” But if I were a millionaire and this money did not influence me much, then most likely I would choose 5 bitcoins with a 50/50 probability