Give me an example and explain a time in our history when the U. S. has had to deal with the "guns or butter" issue. What did they do?

Maybe a horizontal because its a pattern

A,b,c is the answer to the question

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.

None   they are   equally likely to occur on any plate boundary