A Thick Lens Is Able to Bend Light More Than

A thick lens is able to bend light more than a thin lens. What, if anything, can you say about the focal lengths?

A) The thick lens has the longer focal length.
B) The thin lens has the longer focal length.
C) Focal length is determined by the focal point for parallel light and has nothing to do with lens thickness.
D) To determine relative focal length, you would have to know both the lens thickness and the light wavelength.

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