You Are the Lucky Student of a Wacky Professor Who

Multiple Choice

You are the lucky student of a wacky professor who develops a time machine. He asks if you will test it with him. You get in and there is an immediate glitch-the date readout fails so that when you land you are not sure what era you are in. Your professor begins to panic, but you see something that tells you are in the Cenozoic era. Which of the following could it be?

A) a rabbit eating a daisy
B) a water lily floating in a pond
C) masses of green ferns with dragonflies hovering above them
D) a forest of large tree ferns
E) a herd of huge long-necked sauropod dinosaurs