The correct option is
A A- Ocellus, B- Compound eye, C- Maxilla, D- Mandible, E- Labium, F- Labrum
A - Ocellus - It is a type of simple eye.its helps in sense light(photoreceptor)
B- Compound eye -It is made up of repeating units called ommatidia, each of which functions as a separate visual receptor.
C-Maxilla -There are paired structures behind the mandible. They are used to hold and manipulate food so that it can be chewed or sliced by the mandibles.
D Mandible -The mandibles cut off pieces of food and crush them before they are swallowed.
E- Labium -Together with the maxillae, the labrum assists manipulation of food during mastication(chewing)
F-Labrum -The labrum is often called an insect's upper lip. The labrum partially or completely obscures the mandibles and helps hold food in a position when the insect feeds.
So, the correct answer is 'A- Ocellus, B- Compound eye, C- Maxilla, D- Mandible, E- Labium, F- Labrum'.