The scatterplot below shows Olympic gold medal performances in the long jump from 1900 to 1988. The long jump is measured in meters.(image)For this linear regression model, r2 = 0.90. What does this mean? a. The maximum long jump was around 90 inches. b. The winning long jump increased by 90% each year after 1900. c. 90% of the winning long jump distances are accurately estimated by the regression line. d. The year explains about 90% of the variation in the winning long jump distances.