I'm not 100% sure on what the answer is but I think its either B or C.
I'm pretty sure the answer is B if not the try D
Genghis Khan is the least important Mongol emperor and the most cruel one.
The correct answer is: Mendel developed his laws of heredity.
The publication in 1866 of the laws formulated by Mendel on<em> the heredity of characters in sexual reproduction </em>was contemporaneous with the evolutionary hypothesis developed by Darwin in his book <em>On the origin of species by means of natural selection </em>in 1859.
If I remember it correctly the right answer is B. Religious traditions .
