Refer to the Figure

Refer to the figure.
Based on the figure, which statement about Davidson and Andrewartha's experiment on thrips (Thrips imaginis) is true?

A) Davidson and Andrewartha's model of thrips per rose was exactly the same as the observed numbers.
B) The predicted numbers closely resembled the observed numbers.
C) The observed numbers of thrips was always lower that the predicted model but showed the same general trends.
D) The predicted numbers model accurately reflected the observed numbers some years but in other years the predicted model was very different than the observed numbers of thrips.