The number of calculators and backpacks that were turned into the school lost and found have been recorded for 10 days in the scatterplot below. Which statement is best supported by the scatter plot?
A. There is a positive linear association between the number of calculators and backpacks.
B. There is a negative linear association between the number of calculators and backpacks.
C. There is a non-linear association between the number of calculators and backpacks.
D. There is no apparent association between the number of calculators and backpacks.