The correct option is D Neanderthal man
Peking man had a cranial capacity of 850 - 1100 cc
Java man had a cranial capacity of 800 - 1000 cc
African man had a cranial capacity of 500 cc
Neanderthal man had a cranial capacity of 1400 cc
Hence, Neanderthal man had the largest cranial capacity among the given options.