The amount of a radioactive substance remaining as it decays over time is , where A represents the final amount, represents the original amount, t represents the number of years, and h represents the half-life of the substance. Carbon-14 is a radioactive isotope that has a half-life of 5,730 years. Approximately how many years will it take for carbon-14 to decay to 10 percent of its original amount?

A.
19,035 years
B.
28,650 years
C.
8,267 years
D.
16,396 years