You are given a worked wooden item from an archaeological dig believed to date to during the last glaciation. As such, the artifact would be another piece of evidence in favor of the hypothesis that North America was settled prior to the end of the last glaciation. You analyse the artifact and find that it has a specific activity of 2.2 dpm/g. How old is the artifact?
Choose one answer.
a. 8,268 y
b. 16,000 y
c. 11,000 y
d. 1189 y