This question has two parts. First, answer Part A. Then, answer Part B. Part A
Which sentence expresses a central idea of “Carnivorous plants say ‘cheese’”?
Question 4 options:

New technology has helped scientists confirm how bladderworts trap prey.

The bladderwort uses small hairs to detect the presence of an insect

Researchers have long misunderstood how the bladderwort works

The bladderwort is a common plant with beautiful yellow flowers.