Read this and answer the question. If the question is unanswerable, say "unanswerable".

The oldest brain to have been discovered was in Armenia in the Areni-1 cave complex. The brain, estimated to be over 5,000 years old, was found in the skull of a 12 to 14-year-old girl. Although the brains were shriveled, they were well preserved due to the climate found inside the cave.

The oldest known brain discovered was found in how old of a person?
12 to 14-year-old