Which Statement Is True About Carbohydrates

Multiple Choice

Which statement is true about carbohydrates?

A) They maybe saturated or unsaturated.
B) They are a component of the cell wall of different types of organisms.
C) They have primary, secondary, tertiary, and quaternary structure.
D) They are usually hydrophobic.
E) They consist of simple sugars which contain carbon, hydrogen, and oxygen in a 2: 1: 2 ratio.