A skeleton of a species is found to have a carbon-14 decay rate of 1.15 disintegrations per minute per gram of carbon (1.15 dis/min•gC). A carbon gathered from a living species has a rate of 18.5 disintegrations per minute per gram of carbon (18.5 dis/min•gC). If the half-life of carbon-14 is 5730 years, calculate the age of the skeleton.

• A. 2.30×10⁴ years
• B. 5.71×10⁴ years
• C. 3.20×10⁴ years
• D. 4.15×10⁴ years