The graph below shows the averaged sunspots from 1610 to 2007. Yearly Averaged Sunspot Numbers 1610-2007

Source: http://science. nasa. gov/science-news/science-at-nasa/20 08/1liul solarevcleupdate!
Based on the graph, which of these conclusions is correct? (2 points)
a. Some of the previously warm regions became colder from 1650 to 1700.
X b. Some of the previously cold regions became warmer from 1600 to 1700.
c. Some of the previously warm regions became warmer from 1610 to 1700.
d. Some of the previously cold regions became colder from 1900 to 1950