Teacher:In this task you are given a Chinese paragraph related to criminal cases, your job is to give an answer to what the criminal's name is.
Teacher: Now, understand the problem? Solve this instance: 蒙城县人民检察院指控：被告人郭某某非法为孕妇张某某实施选择性别的终止妊娠手术。公诉机关提供了被告人供述、证人证言等证据，认为被告人郭某某的行为构成××罪，应依照《中华人民共和国刑法》××的规定依法追究其刑事责任。
Student:
郭某某