An IV injection of 0.5% drug A solution is used in the treatment of systemic infection. Calculate the amount of NaCl nee

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An IV injection of 0.5% drug A solution is used in the treatment
of systemic infection. Calculate the amount of NaCl need to be
added to render 100ml of this drug A solution isotonic (D values
for drug A is 0.4°C/1% and NaCl is 0.58°C/1%).
A. 0.9 g
B. 0.72 g
C. 0.17 g
D. 0.55 g