Which of the following terms describes the action of decreasing the concentration of a solution by adding additional solvent?

A. Dilute
B. Freeze
C. Dissolve
D. Concentrate

Option D - Concentrate

Explanation:

The concentration of solution increases with increase in ratio of amount of solute to that of solvent in the solution and decreases with the decrease in ratio of amount of solute to solvent.

Therefore, adding more solvent  will decrease the ration , hence the concentration of solution decreases.

girl imma just put my comment here because i need a couple point okurrttt

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.