Problem: Carbon-14 has a half-life of 5720 years and this is a first order reaction. If a piece of wood has 25% of the carbon-14 remaining, then how old is it? A) 11440 years B) 2375 years C) 4750 years D) 4290 years E) 1430 years

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Carbon-14 has a half-life of 5720 years and this is a first order reaction. If a piece of wood has 25% of the carbon-14 remaining, then how old is it?

A) 11440 years

B) 2375 years

C) 4750 years

D) 4290 years

E) 1430 years