A patient with cancer has the following notation in the patient's chart: TXNOMX. Which describes the meaning of this notation?

A. The primary tumor cannot be found; no cancer in the nearby lymph nodes; metastasis cannot be measured.
B. The primary tumor cannot be measured; no cancer in the nearby lymph nodes; metastasis cannot be measured.
C. The primary tumor cannot be found; nearby lymph node cancer cannot be measured; no metastasis has occurred.
D. The primary tumor cannot be measured; nearby lymph node cancer cannot be measured; no metastasis has occurred.