Question

The table below shows the half-life of an element:

Half-Life Data-

Element Half-Life
Carbon-14/5,730 years

Scientists have found that the carbon-14 content of an unknown prehistoric sample was reduced to one-half. What best describes the identity of the sample?

A.- An organism that died more than 10,000 years ago

B. - A rock that formed more than 10,000 years ago

C.- An organism that died 5,730 years ago

D.- A rock that formed 5,730 years ago