Transgenic Animals Can Be Limited in Terms of Their Study

Transgenic animals can be limited in terms of their study of the links between diseases and specific genes since

A) the transgene must be dominant and some diseases are caused by recessive mutations.
B) the transgene must be recessive and some diseases are caused by dominant mutations.
C) all disease are the cause of mutations in multiple genes..
D) diseases are not caused by the expression of a gene but on post-translational modifications of the protein products.