After an organism dies, its C-14 to C-12 ratio "remains constant".
<u>Answer:</u> Option C
<u>Explanation:</u>
Carbon dating is the evaluation of organic matter's age from the C-12 & C-14 relative proportions contained by matter. Soon after the death of organism new carbon inhalation stops. While the ratio of these carbon isotopes at the moment of death remain same as rest of the living things.
But C-14 decays by having half life of 5700 years and C-12 amount remain same in the organic matter. The ratio of C-12 to C-14 in any dead organic matter is compared to ratio in a living matter with the intention of determining the age of a formerly living thing in most precise manner.
