Brain Tumors Are Either Malignant or Benign,depending on the Cell

Multiple Choice

Brain tumors are either malignant or benign,depending on the cell type.Both primary and metastatic tumors of the brain and its membranes are included in the term intracranial tumors.Which two tumor types are the most frequently seen central nervous system (CNS) tumors in adults?

A) Meningioma, oligodendroglioma
B) Glioblastoma, metastatic tumors
C) Medulloblastoma, metastatic tumors
D) Astrocytoma, hemangioma