if the u. s.a makes pencils. china makes crayons. the u. s.a is in need of crayons and china is need of pencils, what should the two countries do? And what is this called​

Ithink it would be choices a and b. hope this !

Iam a german monk and professor of theology. i believe that the catholic church's practice of buying forgiveness of sins through indulgences is wrong. i have translated the bible into german to make it easier for more people to be able to study it. i am here to stand by my writings and i refuse your demand that i recant them