Most hospitals have treatment options for cancer patients. All hospitals are able to treat all kinds of burn victims as well as all kinds of Neurology disorders. Ttherefore, there must be some hospitals that treat both cancer and burn victims and some hospitals that treat both cancer and Neurology disorders.
The pattern of flawed reasoning in which the argument 'Most certainly, most insects are helpful to humans, for almost all insects have an exoskeleton or three parts (a head, thorax, and abdomen), or both, and there are some insects that are helpful to humans and have exoskeletons and some that are helpful to humans and have three parts' is most parallel to that in the argument above.