Which substance can be divided into to groups, simpel and complex

Carbohydrates

Carbohydrates can be divided into two main types: simple and complex. Simple carbohydrates are made up of just one or two sugar units, whereas complex carbohydrates are made up of many sugar units.

Explanation:

Carbohydrates can be divided into two main types: simple and complex. Simple carbohydrates are made up of just one sugar units, whereas complex carbohydrates are made up of many sugar units.

A carbohydrate is a biomolecule consisting of carbon, hydrogen and oxygen atoms, usually with a hydrogen–oxygen atom ratio of 2:1 and thus with the empirical formula Cₘₙ.

well wheres the question