The stereotype image of neandertal as a "brutish, ignorant caveman" is based on:
a. his large physical size and stocky, muscular build
b. an early neandertal skeleton of a crippled, hunched-over individual
c. his thick-boned skull and skeleton, and his physical strength
d. all of the above

D. All of the above

Explanation:

Neanderthal man (Homo sapiens neanderthalensis):

Their fossils were first obtained from Neander valley in Germany which belonged to late pleistocene epoch. Later many other fossils were recovered from various countries by different paleontologists. Neanderthal man had slightly prognathus face. They walked upright like us and has low brows, receding jaws and high domed heads. The main point of difference from us was that they were much stockier than we are. Their cranial capacity was 1300-1600 cc. They were cave dwellers with humped back. They were also skilled in hunting and skilled predators.  The neanderthal man was cannibal and they fashioned the skin into clothing to protect themselves from harsh climate conditions. Its also believed that they buried their dead ones with flowers and tools. Homo sapiens neanderthalensis did not evolve into homo sapiens. Cro magnon was the direct ancestor of the living modern man.

i believe it would be the lungs.