Look at the graph of the linear function.

On a coordinate plane, a line goes through 4 points. Point A is (negative 2, negative 4), point B is (negative 1, negative 2), point C is (1, 2), and point D is (2, 4).

The rate of change between point A and point B is 2. What is the rate of change between point C and point D?
–2
Negative one-half
One-half
2