Refer to the Figure

Multiple Choice

Refer to the figure.

-Suppose that growing a plant requires an average of 10 mm of precipitation plus 1 mm of precipitation for every degree the average monthly temperature exceeds freezing. The plant also requires an average monthly temperature above freezing. Based on the climate diagram, and assuming that the temperature conforms to the long-term climatic average, during how many months of the year should the plant be able to grow?

A) 3
B) 6
C) 10
D) 12