Malignant brain tumors are deadly because such tumors

a. can increase the flow of cerebrospinal fluid, thus causing hydrocephalus.
b. release glutamate.
c. give off cells that travel to other body areas and result in new tumors.
d. release glycine, which kills nearby cells.
e. can only be confirmed at autopsy.

Answer: c. give off cells that travel to other body areas and result in new tumors.

Psychology

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