The Solubility of O₂ in Water Is Approximately 0

The solubility of O₂ in water is approximately 0.00380 g L^-1 of water when the temperature is 25.0°C and the partial pressure of gaseous oxygen is 760 torr. The oxygen gas above the water is replaced by air at the same temperature and pressure, in which the mole fraction of oxygen is 0.210. What will the solubility of oxygen in water be under these new conditions?

A) 1.05 × 10^-6 g L^-1
B) 7.98 × 10^-4 g L^-1
C) 1.33 × 10^-3 g L^-1
D) 0.606 g L^-1
E) 1.01 g L^-1