Step 1: Identify the physical states of solute and solvent.
Benzoic acid is a solid at room temperature, while benzene is a liquid.
Step 2: Determine the type of solution.
When a solid solute dissolves in a liquid solvent, the resulting solution is classified as a solid-in-liquid solution.
Step 3: Conclusion.
Since solid benzoic acid dissolves in liquid benzene, the solution formed is a solid in liquid type.