The figure shows a line graph and two shaded triangles that are similar.
Which statement about the slope of the line is true?
A. It is 1/2 throughout the line.
B. It is 2 throughout the line.
C. The slope from point O to point A is 1/2 time the slope if the line from point A to point B
D. The slope from point O to point A is 2 times the slope if the line from point A to point B
