Elijah created the scatterplot to show the relationship between the temperature in degrees fahrenheit and the number of visitors to a zoo.

(graph below)

which is true regarding the data in his scatterplot?
a. as the temperature increases, the number of visitors decreases.
b. as the temperature increases, the number of visitors increases.
c. as the temperature increases, the number of visitors remains the same.
d. as the temperature increases, the number of visitors increases then decreases.