The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of

Analogous organs are organs similar in shape and function but their origin, basic plan and development are dissimilar. Such similarities are because of convergent evolution for adaptation to a common condition. Example: Eye of octopus and eye of cat; wing of bird and wing of bat. Thus, the correct answer is option (A), 'Analogous organs that have evolved due to convergent evolution'.