After Measuring the Neocortex Ratio of Two Species,it Was Determined

After measuring the neocortex ratio of two species,it was determined that Species A has a ratio of .25,whereas Species B has a ratio of .20.Based on the evidence discussed in the textbook,which of the following can one most likely conclude about these two species?

A) Species A's diet contains more fruit than Species B's diet.
B) Species B has higher intelligence than Species A.
C) Species A uses more extractive techniques to get food than Species B.
D) Species B lives in a smaller social group than Species A.
E) Species A has a larger brain relative to its body size than Species B.