To Determine the Age of Fairly Recent Fossils and Organic

Multiple Choice

To determine the age of fairly recent fossils and organic artifacts, it is possible to analyze the amounts of the isotopes ¹⁴C and ¹⁴N, because over time the ¹⁴C-which originated in the atmosphere-breaks down into ¹⁴N. What net change occurred for this to happen?

A) The ¹⁴C lost an electron.
B) The ¹⁴C gained an electron.
C) The ¹⁴C lost a proton.
D) The ¹⁴C gained a proton.
E) The ¹⁴C gained a neutron.