Which of These Statements About Cancer Is TRUE

Which of these statements about cancer is TRUE?

A) Clients who are diagnosed after metastasis has occurred usually have good prognoses.
B) Metastasis usually occurs when malignant cells multiply and spread to other body parts through the central nervous system.
C) Metastatic patterns resulting from the same type of cancer will differ from person to person.
D) Patterns of metastasis differ depending on the type of cancer.