The correct option is D Darwin
Oparin
Oparin - wrote the book ‘Origin of Life’.
Weismann
Weismann - wrote various books on evolutionary theories like ‘The germplasm’, ‘The evolution theory’.
Lamarck
Lamarck - wrote the book ‘Philosophie zoologique’.
Darwin
Charles Darwin wrote the book ‘On the Origin of Species by Means of Natural Selection’.
Final answer
(d) Darwin