Answer:
it is B
explanation: I did it and I got it right
<span>* carbon-14 levels in a sample are undetectable after approximately nine half-lives.
Nine half-lives pf carbon 14 is 51,570 years.
Source:
https://en.wikipedia.org/wiki/Radiocarbon_dating
</span>
Hello! The simplest fraction would be: 4/5
I really hope this helped you! c: