<prompt> Most common site of glioblastoma multiforme is-CP angleFrontal lobeBrainstemOccipital lobe  <response>: Ans. b i.e., Frontal lobe A glioblastoma multiforme GBM is a type of brain tumour called an astrocytoma. Astrocytomas are some of the most common brain tumours. They develop from the highly vascular and quickly reproducing astrocyte cells in our brain and are often malignant. 