Which two of the following excerpts contain CENTRAL ideas of the article? Natural selection is the process that brings new kinds of organizations and traits from one generation to the next.
The basic organization of awareness is shared among all living things.
All of these inputs come into the brain and the brain analyzes the signals and figures out the most appropriate response.
Animals like mammals have millions or even billions of neurons in their brains.
Question 1 options:

1 & 2

3 & 4

1 & 4

2 & 3