The Wings of a Bird and the Wings of a Bat

Multiple Choice

The wings of a bird and the wings of a bat both form from the front appendages (arms) . The bird wing is covered by feathers and the bat wing consists of a thin layer of skin stretched between the "finger" bones. Are the wings of the bird and bat homologous or analogous?

A) homologous because they evolved from the same body part
B) analogous because birds' flight requires feathers and bats use skin; both are wings, but they evolved differently
C) both; they are homologous because they both evolved from a front appendage, but analogous because they evolved differently
D) neither, because birds and bats do not share a recent common ancestor