The correct option is B Chimpanzee
Apes have a lower cranial capacity (100 c.c in Gibbon, 400 c.c in Orangutan and Chimpanzee and 550 c.c in Gorilla) as compared to man.
Man has a higher cranial capacity of 1400 - 1450 c.c.
Java man had a cranial capacity of 775- 900 c.c.