Answer:
Option B, The amount of water in the blood
Explanation:
This can be understood from the scenario as described below –
Suppose the quantity of water (volume by volume, v/v or %) in blood is equal to X litre which constitute Y% of the total blood volume.
Then, the volume of blood can be determined in the following ways-
Y % of blood volume is equal to X liters
Then
\(\frac{Y}{100} * Blood Volume [tex]= X\\\) litres
Blood Volume \(= \frac{X * 100}{Y} \\\)litres
Thus, in this way if amount of water in blood is known, then the blood volume can be determined.
