The Wings of a Bird and the Wings of a Bat

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 consist of a thin layer of skin stretched between the "finger" bones. Are the wings of the bird and bat homologous or analogous?

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