¹⁴C Has an Activity of 0 $\times$ 10³ Y
B) 5 $\times$

¹⁴C has an activity of 0.25 Bq per gram of carbon for living organisms.The half-life of ¹⁴C is 5730 years.If a sample of charcoal from an archeological dig yields a ¹⁴C activity of 0.15 Bq per gram of carbon,how old is the material?

A) 6.6 $\times$ 10³ y
B) 5.1 $\times$ 10³ y
C) 4.2 $\times$ 10³ y
D) 1.7 $\times$ 10³ y
E) 1.4 $\times$ 10³ y