Plasma content of blood is
d. 55%
The correct option is d.
Explanation for the correct answer:
Explanation for incorrect options:
option a: Plasma content in blood is not 80% but 55%.
option b: The amount of plasma in blood is 55% and keeps a healthy balance.
option c; 44% is the amount of blood cells in the blood and plasma makes 55% of blood in total.
Final answer: Plasma content of blood is 55%.