<prompt> Low grade Central Nervous System tumour among the following isDiffuse astrocytomaAnaplastic astrocytomaGlioblastoma multiformeMeningioma  <response>: D Meningioma SPECTRUM OF CNS TUMORS range from Diffuse astrocytoma grade llIV Anaplastic astrocytoma grade lllIV Glioblastoma grade IVIV Most meningiomas have a relatively low risk of recurrence or aggressive growth, and so are considered WHO grade lIV. 