Read the following article and answer the question. Article: Egyptian researchers believe they have recognized the mummy of Hatshepsut, the most famous queen to rule ancient Egypt, found in an average tomb in Egypt's Valley of the Kings. Researchers said the mummy was one of two females found in 1903 in a small tomb believed to be that of Hatshepsut's nurse, Sitre In. In fact, there has been the idea over the years that one of the mummies may be that of the queen, who ruled from between 1503 and 1482 BC - at the height of ancient prefix = st1 /Egypt's power. The decisive truth-telling fact was a tooth in a wooden box marked with the queen's name, Hawass said. The box was found in 1881 in a hiding place of royal mummies collected and hidden away at the Deir al-Bahari temple about 1,000 metres away from the tomb. Checking all the mummies which might be Hatshepsut's, Yehya Zakariya, a medicine professor, found that the tooth was a perfect fit in a hole in the upper jaw of one of the two females, a fat woman believed to have suffered from cancer and diabetes. "The recognition of the tooth with the jaw can show this is Hatshepsut," Hawass said. "A tooth is like a fingerprint." Another researcher Elizabeth Thomas _ many years ago that one of the mummies was Hatshepsut's because how the right arm was put over the woman's chest suggested royalty . It was guessed that the mummy might have been hidden in the tomb for safekeeping because her stepson and successor , Tuthmosis III, tried to wipe out her memory. Hatshepsut stole the power from her young stepson. After her death, records were destroyed and her body was dug out. Question: What is the key to the recognition of Hatshepsut's mummy? Answer:
The answer is:
The tooth.