The correct option is A Group - 1
Oviparous organisms are those who reproduce by laying eggs.
The oviparous organisms are classified into Group – 1, Group – 2 and Group – 3. Group – 1 includes the insects, Group – 2 includes the fishes and Group – 3 includes the reptiles. Ant is an insect. So it belongs to the Group – 1 of oviparous organisms.