Answer:
It helps you figure out what you want to investigate and how.
Explanation:
In the world of academic writing, or for that matter, any form of writing a research paper, it is pertinent to have a plan at first. This planning will ensure the proper process of taking things into consideration, what to do, how to do, what should be the main point of focus, and all.
The very purpose of planning any research is to make sure that the main points that are to constitute the investigation are well thought of. This will ensure there are enough and valid resources to take the investigation further, and that due process is followed. It will also help the people or person involved to figure out the how, when, why, and what of the investigation that is to be done.
Thus, the correct answer is the first option.  
 
        
             
        
        
        
Well I think Designate is use for this:"you need to learn art, not designate a final decision"
        
                    
             
        
        
        
Underneath because it is the same meaning of the proposition Under
        
             
        
        
        
McCarthyism is nothing more than a witch hunt.  A lot of finger pointing and not a lot of proof.  Both parties (Democrat & Republican) in the United States use this in todays world.  Ill give examples of both and follow up with how it can be beneficial to each party.
Democrats:  Accuse other politicians of being "racist" or "bigoted" just from political ideas and from certain members of the base.  While it is not fact or true that Republicans are by policy racist, it is a word that is hated by people and has a negative connotation to it, forcing some to keep distance from said person
Republicans:  Accuse other politicians of being "muslin lovers" or "muslins" themselves.  We saw this for the entire Obama presidency.  Congress and some Republican supporters would use the word "muslin" to describe the president in order to give a negative connotation towards Obama.  This has some strong effectiveness due to the recent events (September 11th, 2001).
Both parties are trying to stick a negative idea/precedent/description about the opposition in order to sway votes.  This tactic is very effective because  not only will you sway votes, theres little repercussion in doing so because the people who disagree with you are not going to be swayed, but that voter in the middle who cares about one issue over the other (in this case racism over fear of muslims or vice versa fear of muslims over racism).  
Either someone is intelligent enough to know the rhetoric between the two parties and votes by policy (unaffected / no positive or negative response), they don't care about either issue (unaffected / no positive or negative response), or someone is strongly in favor of one or the other (strong positive or negative response).
While there are some attempts that have been made and can be made that would be so egregious that most people have a negative response, but that rarely happens and would be deemed political suicide.  
Hope this helps.