Which statement best compares a carbohydrate and a nucleic acid?
a) Carbohydrates contain monosaccharide units, while nucleic acids contain nucleotide units.
b) Carbohydrates are composed of amino acids, while nucleic acids are composed of sugars.
c) Carbohydrates store genetic information, while nucleic acids provide energy.
d) Carbohydrates have a double helix structure, while nucleic acids have a branched structure.