A common definition of a strategic mineral is a mineral that would be needed to supply the military, industrial, and essential civilian needs of the United States during a national emergency. They are not found or produced in the United States in sufficient quantities to meet this need.
The answer is D optimistic
The reason time is important is b/c if there’s too much delay in between the U.C.S and the C.S the learner may not make the connection. For acquisition you must introduced the C.S and as soon as thats presented quickly introduce the U.C.S so there is an overlap between those two