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Question : [A]: Choroid plexus is one of two thin-walled greatly folded highly vascular regions in the inner wall of the brain through which ex- change of materials between blood and cerebrospinal fluid takes place. [R]: The choroid plexuses (which form the blood-brain barrier) bar the entry of blood cells and large molecules into the cerea brospinal fluid.

Answer»

If both A and R are true and R is the CORRECT EXPLANATION of A
If both A and R are true but R is not the correct explanation of A
If A is true and R is false
If both A and R are false

Answer :B


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