The correct option is B Jurassic
The Jurassic period started 213 million years ago and lasted until 240 million years ago. This was the first period to have birds. Turtles and crocodiles increased in numbers and variety. New species of plesiosaur and ichthyosaur arose. On land, insects were thriving including ancestors of modern ants, bees, earwigs, flies and wasps. The first bird appeared and Dinosaurs ruled the land.