plz hellllp p8 points if u do 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?
An organism that died more than 10,000 years ago
A rock that formed more than 10,000 years ago
An organism that died 5,730 years ago
A rock that formed 5,730 years ago