Correct Option (b)
Reason : Homo erectus (0.25–1.7 million years, middle Pleistocene man) is known as erect man, who walked erect over legs. Homo sapiens (late Pleistocene man, 5 lakh year) is parent species to which modern man belongs. It evolved from Homo erectus in Africa. Homo sapiens sapiens is the modern man, evolved about 25000 year back but spread to various parts of the world about 10000-11000 year ago.
Correct Option (b) Reason : Homo erectus (0.25–1.7 million years, middle Pleistocene man) is known as erect man, who walked erect over legs. Homo sapiens (late Pleistocene man, 5 lakh year) is parent species to which modern man belongs. It evolved from Homo erectus in Africa. Homo sapiens sapiens is the modern man, evolved about 25000 year back but spread to various parts of the world about 10000-11000 year ago.