I am pretty sure it is the trichromatic theory because all or nothing is about neurons, opponent process wouldn't be it, Rod and cone is about the light we take in the colour etc. I would go for trichromatic. not 100% though
The international Assistance group was founded in 1992 by Europeans to help each other with assistance cases. Now it is a closely linked network with common goals.
Question: A different group of people who share similar needs is called a/an .
Answer: Assistance Group
The answer is c you are welcome
