Jolene Has Breast Cancer That Has Been Staged as T1

Jolene has breast cancer that has been staged as T1, N0, M0.What might this mean?

A) The tumor size cannot be evaluated; the cancer has not spread to the lymph nodes; and the distant spread cannot be evaluated.
B) The cancer is in situ; it is spreading into the lymph nodes, but the spread cannot be evaluated otherwise.
C) The cancer is less than 2 cm in size and has not spread to the lymph nodes or other parts of the body.
D) The cancer is about 5 cm in size; nearby lymph nodes cannot be evaluated; and there is no evidence of distant spreading.