Use the image of chlorophyll to answer the question.

An illustration shows the structure of the chlorophyll molecule as a long chain of carbon atoms forming hexagonal and pentagonal structures at one end and a long tail at the other end.

How are carbon atoms represented in this image?

(1 point)
Responses

blue circles
blue circles

white circles
white circles

red circles
red circles

dark gray circles
dark gray circles

The carbon atoms are represented as dark gray circles in this image.