Almost all of the acidity of soda pop comes from the phosphoric acid which is added to give them a sharper flavor. The correlation between acidity and phosphoric acid is -0.991. Use this correlation to decribe the relationship between acidity and phosphroic acid in soda pop.
A. No evidence of relation
B. Strong linear relation in a positive direction
C. Very strong linear relation in a negative direction
D. Weak linear relation in a negative direction