izzy4196 izzy4196 06-10-2021 History contestada The half-life of carbon is 5,700 years. A certain sample of wood has 20 grams of carbon-14 when it is alive. How many grams of carbon will it have after 5,700 years? A. 40 grams B. 2 grams C. 10 grams D. 5 grams