The correct answer is option 2: Analogous organs.

Homologous organs are those that have a common evolutionary origin but may have different functions. For example, the forelimbs of humans and the wings of birds are homologous organs, as they have a similar structure (with bones, muscles, and joints) but serve different purposes.

Analogous organs, on the other hand, are those that have a similar function but do not share a common evolutionary origin. The wings of a bird and an insect are both used for flying, but they have different structures and evolved independently. Therefore, the wings of a bird and an insect are considered analogous organs.

Vestigial organs are those that have lost their original function over the course of evolution. Rudimentary organs are undeveloped or underdeveloped structures in an organism. Neither of these terms apply to the wings of a bird and an insect.