Which of the following areas might have the highest salinity?

areas near the equator
areas in halocline
areas near the poles
areas near continents where freshwater rivers enter the ocean

Areas near continents where freshwater rivers enter the ocean. The ocean IS salt water.

is this a psat question, if so do not cheat try your best.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.