Is coffee a solution, colloid, or suspension?

I think the answer is a suspension

Short Answer: Coffee are not solution but it is colloid and suspension.

Explanation:

The cream is a foam of air suspended in an emulsion composed of vegetable oils and water. Perhaps you decide to have an orange juice, rather than a coffee - that, too, is a colloid. It is a sol, a suspension of solid particles of pulp in an aqueous continuous phase.