Q: Fact 1: Brain cells die quickly if their oxygen supply is cut off. Fact 2: Astroglial cells are the most common cells in brain tissue. Given the two facts above, what dies is their oxygen supply is cut off?

Pick from:
a). trees
b). Plant growth is reduced
c). weathering
d). Veins and arteries.
e). Most plants
f). astroglial cells
g). critical organs
h). gravity
The answer is:
f).