The correct option is A Eye of insects
The compound eyes of arthropods like insects, crustaceans and millipedes are composed of units called as ommatidia. An ommatidium contains a cluster of photoreceptor cells surrounded by support cells and pigment cells. These form mosaic image. All these small images are combined in the brain to form a complete image of the object that is made of small dots or mosaic of dots and hence it is called as mosaic vision.
Therefore, the correct answer is option C.