Answer: The correct answer is -
A. detect color and form images.
Explanation:
Compound eyes are considered as the organ of vision, present in arthropods like crustaceans and insects. They are composed of thousands of small, independent units of photoreception called ommatidia (each having a cornea, lens, and photoreceptor cells) which are used to form the complete image together and distinguish brightness as well as color of the image.
The number and the size of ommatidia provides a larger field of vision to the insect.
Thus, option A is the right answer.