Adding salt (sodium chloride) to a solution of an organic compound in water usually does what

a. Decreases the refractive index of the mixture.
b. Decreases the solubility of the organic compound in the water.
c. Decreases the density of the mixture.
d. Decreases the boiling point of the mixture

Adding salt (sodium chloride) to a solution of an organic compound in water usually does what?

a. Decreases the refractive index of the mixture.
Who but God knows?

b. Decreases the solubility of the organic compound in the water. probably the best answer

c. Decreases the density of the mixture.
definitely not; increases density

d. Decreases the boiling point of the mixture
Possably another answer,
but I've eliminated two-good luck!