5. Which of the following is true about cones? a) They... Which of the following is true about cones (in the eye)?

5. Which of the following is true about cones?

a) They are responsible for black and white vision.

b) They are found mainly in the center of the eye.

c) They operate mainly at night.

d) They respond only to black and white.

I think it's either A or B. But please help, thank you.
Answers:   There is no correct to all of them except B
Yep, B is as correct as those answers get.

They are mainly in the center of the retina, not the center of the eye, but the other 3 answers are more wrong, so it has to be B
Do your own homework.

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