Modifiers

When children become teenagers, scientists believe that their sense of taste begins to evolve more because
their sense of smell is heightened than because their taste buds change.

A: scientists believe that their sense of taste begins to evolve more because their sense of smell is heightened
than because their taste buds change
B: their sense of taste evolves, scientists believe, more because their sense of smell becomes heightened than
because of their taste buds changing.
C: their sense of taste evolves, scientists believe, due more to their sense of smell heightening than their taste buds
changing.
D: scientists believe that their sense of taste begins to evolve more because their sense of smell is heightening than
because their taste buds are changing.
E: their sense of taste begins to evolve, scientists believe, more because their sense of smell becomes heightened
than because their taste buds change.
what is the best method to use here? can anyone help?