Correct option (a) Weismann-Theory of continuity of germplasm
Explanation
The correct theory is the Weismam Theory of continuity of germplasm. Rest of the theories were proposed by
Scientist Theory
Pasteur - Germ theory of ***
Charles Darwin -Theory of natural selection
Lamarck - Inheritance of accquired characters
Hugo de Vries - Mutation theory
Mendel - Laws of inheritance
Darwin - Theory of pangenesis