I believe the answer is: The zone of proximal development.
The zone of proximal development refers to the area of learning where the learners could differentiate the things that they can and cannot do without help. 
Being a ware of this zone is a crucial step in learning because it give the learners with the awareness on the efforts that they need to do in the future in order to surpass the challenge without any help.
 
        
             
        
        
        
<h2>Answer: D The management of publicity</h2><h2></h2>
        
             
        
        
        
Many Democrats believed taxes were too high and made it difficult for farmers to export goods?
        
             
        
        
        
A plant in the desert would have to survive days without water in order to survive