Task: Instance Description Understanding (ontology: Sciences/Computer_Science)

Which of the following definitions best describes the instance 'Stage IA (FIGO)'?

A. An International Federation of Gynecology and Obstetrics cervical cancer stage value specification indicating cervical carcinoma invades beyond the uterus, but not to the pelvic wall or to the lower third of the vagina without parametrial invasion and clinically visible lesion >4.0 cm in greatest dimension.
B. An International Federation of Gynecology and Obstetrics cervical cancer stage value specification indicating measured stromal invasion of <3.0 mm in depth and extension of <7.0 mm.
C. An International Federation of Gynecology and Obstetrics cervical cancer stage value specification indicating invasive carcinoma which can be diagnosed only by microscopy, with deepest invasion <5 mm and the largest extension <7 mm.
D. An International Federation of Gynecology and Obstetrics cervical cancer stage value specification indicating cervical carcinoma invades beyond the uterus, but not to the pelvic wall or to the lower third of the vagina with obvious parametrial invasion.

Answer: An International Federation of Gynecology and Obstetrics cervical cancer stage value specification indicating invasive carcinoma which can be diagnosed only by microscopy, with deepest invasion <5 mm and the largest extension <7 mm.