Among Three Newly Discovered Species of Primates,Species A's Diet Is

Among three newly discovered species of primates,Species A's diet is based fully on fruits,Species B's diet is based fully on food that requires extractive foraging methods,and Species C's diet is highly social.Which species should have the largest encephalization quotient (EQ) ?

A) Species A
B) Species B
C) Species C
D) All three species have the same EQ.
E) The answer cannot be determined with the available information.