Made vast contributions in improving the relationship between the united states and soviet union.

a.) robert kennedy
b.) president clinton
c.) president nixon
d.) president ford

President Nixon made vast contributions in improving the relationship between the United States and Soviet Union. The correct option among all the options that are given in the question is the third option or option "C". I hope that this is the answer that has actually helped you.

I'm not sure but I think it's The Chinese textiles and worked metals were not as well made as those of the the Europeans' so payments had to be modified. (Prezi)