What is the relationship between the wing of a bird and the wing of a bat?

• A. They are homologous because they represent modified forms of a trait present in a common ancestor (forelimbs).
• B. They are analogous because while each carries out the same function (flight), this trait has arisen independently as a result of convergence (i.e. the common ancestor of both did not have a forelimb that allowed it to fly).
• C. A and B.
• D. They represent derived homologies.