Final answer:
Erendira Wallenda set a record in 2017 by hanging from a helicopter over Niagara Falls by her teeth, showcasing a remarkable stunt.
Step-by-step explanation:
In 2017, aerialist Erendira Wallenda set a record by dangling from a helicopter over the Niagara Falls by her teeth. The correct answer to the question of what part of her body she used to hang from the helicopter is A. Teeth. This was a remarkable feat where she demonstrated incredible strength and skill, surpassing her own husband's record for hanging by teeth at the same location.