What does the concentration of the benzoic acid in the original liquid and the extracting liquid relate to after the extraction is completed?

Question

Answer a. The density of the original liquid.

b. The density of the extracting liquid.

c. The solubility of benzoic acid in each liquid.

d. The melting point of the benzoic acid compared to each liquids boiling point.

Answer 1

Frankly you could have given enough information to help answer your question; I'm guessing the answer is c.
That's what extraction is all about.