[A] : Blood plasma is the slightly alkaline, liv- ing intercellular matrix or ground fluid consti- tuting about 40-45% part of the blood.
[R]: Blood plasma does not have a balanced quantity of salt ions for proper functioning of nervous system, muscles and other tissues
A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false