Mendel succeeded in experiments because of the following reasons:
A. He has taken a large sampling size to obtain a higher accuracy (quantitative analysis).
B. He had done a statistical analysis and applied mathematical logic to extract the results.
C. He also performed the same experiments with the successive generations so that his inferences from experiments should take the shape of general rules of inheritance.
D. He has taken different characters independently in hybridisation experiments to generalized the results.