You are presented with the quiz "cells of leaves and surface cells of stems contain what pigment chlorophyll?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "chloroplasts contain the green pigment chlorophyll" and "chloroplasts are found in the cells of leaves and in the surface cells of stems". 

So, what's the best answer to the question?


 

        green   