The correct answer is letter A
Self-fulfilling prophecy refers to the process in which a person, when believing in the possibility of the occurrence of certain events, contributes to the fact that they occur without realizing their participation.
This process is not conscious and this person does not always want such things to happen, but by "prophesying", that is, by believing that they will occur, he will end up collaborating for this outcome without even realizing how much he interfered with the result.
It is possible that self-fulfilling prophecy happens in positive situations too, using a similar example we can find a person who considers himself very favored by another, when in reality he is not, but because he believes in this he behaves in such an elegant and pleasant way that he ends up conquer this other person and eventually ends up being invited to events, which would not be on the guest list from the beginning.
A. true, economic competition between countries usually came at the expence at the other countries.
Answer:
Sometimes geographers do not want to study the world just at a regional level. Instead they want to learn how people interact globally, or around the world. To do so, geographers ask how events and ideas from one region of the world affect people in other regions. In other words, they study the world on a global level.