Which statement best evaluates the purpose of the Flynn Effect graph?

Answer choices for the above question

A. The author included the graph to show that global IQ has sometimes decreased.

B. The author included the graph to show that global IQ has always climbed at the same steady pace.

C. The author included the graph to illustrate the point made in the text that intelligence around the world is increasing.

D. The author included the graph to show that intelligence is related to how much television people watch.