Suppose that the state of Massachusetts enacts a law that forbids Mexico and businesses located in that country from doing business in Massachusetts because Massachusetts does not favor the way workers are treated there. Such a prohibition would be​ _____ due to the​ _____ Clause of the United States Constitution.
A. ​legal; Privileges and Immunities
B. ​illegal; Takings
C. ​illegal; Privileges and Immunities
D. ​illegal; Commerce
E. ​legal; Commerce