Answer: 
The correct answer is option C "design structured, rigid systems."
Explanation:
Unbending nature is the property of a structure that it doesn't twist or flex under an applied power. Something contrary to unbending nature is adaptability. In auxiliary inflexibility/regidity hypothesis, structures are shaped by assortments of items that are themselves unbending bodies, frequently expected to take basic geometric structures, for example, straight poles (line sections), with sets of articles associated by adaptable pivots. A structure is inflexible on the off chance that it can't flex; that is, if there is no persistent movement of the structure that safeguards the state of its unbending segments and the example of their associations at the pivots. 
There are two basically various types of inflexibility or regidity. Limited or perceptible unbending nature implies that the structure won't flex, overlay, or curve by a positive sum. Minuscule unbending nature implies that the structure won't flex by even a sum that is too little to possibly be recognized even in principle. (In fact, that implies certain differential conditions have no nonzero arrangements.) The significance of limited inflexibility is self-evident, however microscopic unbending nature is additionally critical on the grounds that tiny adaptability in principle relates to genuine minute flexing, and subsequent crumbling of the structure.
 
        
             
        
        
        
Union soldiers were placed in south and confederate were forgiven except for the wealthy
        
             
        
        
        
This definition of law is known as legal positivism.This philosophy lays a greater emphasis on the conventional nature of law and it is associated with positive norms which are made by the legislatures.Afterward, these laws are considered as common laws which must be enforced.
        
                    
             
        
        
        
There is not an only path in the process of turning an idea into a law at federal and state levels of government, however, the most common path is exemplified as follows:
1. You write your state or federal senator about your idea.
2.The Creation of a Bill. Members of the House or Senate draft, sponsor and introduce bills for consideration by Congress.
3. Introduction of Legislation  - A Member of Congress can submit a bill for introduction at any time during a Chamber's daily session.
4. Committee Action - The bill is referred to the appropriate committee by the Speaker of the House or the presiding officer in the Senate
5. Floor Action - The bill goes to the House for action.
6. Resolving Differences Between the House and Senate Versions
7.  Presidential Action. ...
8. The Creation of a Law.