The most apparent change during the evolutionary history of Homo sapiens is traced in
The
brain capacity gradually increased from early human ancestors. Homo
habilis has 650−800 c.c. brain capacity which increased
around 900 c.c., in Homo erectus. The Neanderthal man had
1400 c.c., brain capacity which evolved to around 1450 c.c., in Homo sapiens sapiens.
So,
the correct answer is 'Remarkable increase in the brain size'.