The answer I believe is c.secondary
Light-sensitive cells in the retina at the back of our eye allow us to see. The human eye has two types: cones and rods. Rods are extremely efficient; a tiny amount of light can trigger them. They are responsible for our night vision.
Answer:
I would tell him to man up and give him the kidney(because I don’t want to)
Explanation:
No I would actually tell him to give him the kidney because it is a huge part of his life and he will need it to survive. DO YOU WANT YOUR FRIEND TO PERISH? (MARK MY BRAINLIEST OR ELSE!!!)
This is due to what we call 'random allocation'
