The answer is B. bi- in Greek means life and living.
Hope this helps and if it does, don't be afraid to rate my answer as well as maybe give it a "Thanks"? (Or even better a "Brainliest"). And if it’s not correct, I am sorry for wasting your time, and good luck finding the correct answer :)
I think you need to get to 25 to be a Expert I'm a Ace and it took 50 to get this far, so 7/10 meaning you need three more brainliest to level up. Moreover tho it didn't go by that you add your brainliest later on so you will need 20 or 25 to get on Expert level I don't remember which because I been on Ace for two months now.