Question 16 • TN-Physical Science SC 26-27 (For Credit)
Each half-life leaves half of the carbon-14 that remained before it. After 5 half-lives, the fraction left is (1/2)^5 = 1/32, or about 3.1%, which is closest to the stated 3%. So the bones have gone through approximately 5 half-life cycles, choice C.
AI-written and checked against the verified answer.