Concept:Arabica, Robusta and Liberica are commercially grown species of coffee beans.Explanation:Coffee has over 100 species, but only a few are cultivated for commercial use.Arabica is the most popular variety, known for its smooth flavour and aroma.Robusta has a stronger taste and higher caffeine content.Liberica is less common, with a distinct fruity and woody flavour.These three varieties are grown in many coffee-producing countries worldwide.Answer:Coffee