(B) The correct answer is $B$. Arthropods possess an exoskeleton that provides structural support and protection. This exoskeleton is composed of $Chi

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(B) The correct answer is $B$. Arthropods possess an exoskeleton that provides structural support and protection. This exoskeleton is composed of $Chitin$,which is a complex polysaccharide. $Chitin$ is a polymer of $N$-acetylglucosamine units linked by $\beta-1,4$-glycosidic bonds.