Answer:
C.The Venus flytrap is a carnivorous plant.
Step-by-step explanation:
The central idea of the text is to talk about the plant known as Venus flytrap. The text seeks to show that this is a carnivorous plant, which imprisons and consumes small insects. For this reason, the letter C is the option that shows what the central idea of the text is. The other options present arguments about these plants, or statements that help the reader to visualize it.