Which is true about the functional relationship shown in the graph?
A. The shipping cost is a function of the weight of the package.
B. The weight of the package is a function of the number of packages.
C. The shipping cost is a function of the number of packages.
D. The weight of the package is a function of the shipping cost​

Which is true about the functional relationship shown in the graph A The shipping cost is a function of the weight of the package B The weight of the package is class=