Sardinella longiceps is commonly known as the oil sardine. They belong to the genus Sardinella. This is one of the commercial fishes due to its high value in market in India. The body is elongated. They have a swollen type of belly. They have rays present on their pelvic fin and thus, they are from the group of ray-finned fishes. They have large number of gill rakers. They are heavy sources of oil and fatty acids. Thus, the correct answer is option C.