Which Feature Is an Advantage of Endoskeletons Over Exoskeletons

Multiple Choice

Which feature is an advantage of endoskeletons over exoskeletons?

A) Muscles can attach more firmly to bones than to the cuticle.
B) An endoskeleton provides better protection.
C) Joints are present in endoskeletons but not in exoskeletons.
D) With an endoskeleton, growth is possible without shedding of the skeleton.
E) Endoskeletons are stiffer than exoskeletons.