Task: Class Definition Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes 'chin augmentation surgery'?

A. The ritual cutting or removal of some or all of the external intersex genitalia.
B. Transgender women who engage in sexual activity with women, regardless of how they identify themselves.
C. An adolescent person who is transgender or otherwise gender nonconforming.
D. Any of various procedures which use surgical implants to alter the underlying structure of the chin.

Answer: Any of various procedures which use surgical implants to alter the underlying structure of the chin.