An Ancient Building Was Known to Have Been Built 3

Multiple Choice

An ancient building was known to have been built 3 000 years ago.Approximately what proportion of Carbon-14 atoms are yet in the building's wooden framing compared to the number which were present at the time of its construction? (half life of ¹⁴C = 5 730 years)

A) 0.425
B) 0.500
C) 0.517
D) 0.696