An emotional struggle that takes place in the protagonist's mind is called

Your answer is internal conflict because it takes place in the protagonist's mind and is not physically visible.

caliban is prospero's slave in the shakespear's play "the tempest"

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.