Can Chitin be negatively charged ?

a fibrous substance consisting of polysaccharides, which is the major constituent in the exoskeleton of arthropods and the cell walls of fungi. It is actually just like the cell wall of the plants. It is present in the exoskeleton and protects the small animals against the predators and harsh environment. Chitin is present in exoskeleton and in order to grow, Animal have to shed the exoskeleton or their growth is stunted. It is strictly present in the animals and fungi.

Chitin is a polysaccharide consisting of glycosidic bonds in linear or branched fashion between two adjacent monosaccharides, 2-(acetylamino)-2-deoxy-d-glucose. Chitin is the only positively charged polysaccharide among all other naturally occurred biopolymers which allows a wide range of biological applications.

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots