Plants began to appear around 470 million years ago. Dinosaurs became extinct about 65 million years ago, so thats not a choice. Prokaryotes first appeared on Earth almost 2 billion years ago, so thats not a choice either. Age of the Reptiles began about 252 years ago, so this could be a choice. Eukaryotes formed around 1.5 billion years ago, so probably not a possible choice. Based of the data I provided you, C is the most likely answer. Hope this helps!
