Can you choose more than one option? 
Because a conclusion should not repeat word-for-word the introducion (this would make it actually pretty redundant), but other than this, it should be all of the remaining! (but if i had to choose one, I'd go with "summarize the main points- this would be most effective and most relevant./)
So my answer is: it should restate the thesis AND summarize the main points AND  be imaginative
but it should NOT repeat the introduction word-for-word.
        
             
        
        
        
Answer:
I think it is trying to say that someone from the army is on break and eating a sandwich
Explanation:
the army was done after a long day, one person went to have a break, but they forgot to put the guns on saftey. They also forgot to make sure the gate was closed. They went and made sure everything was fine and thought oh it is I will just go and eat so they ate a sandwich.
 
        
             
        
        
        
I am not really into Country songs. The closest I could think of as Country (Even though it's Jazz) is Jack Wall, who made one of my favorite song (Snakeskin Boots)