C. Through its character’s dialogue
        
             
        
        
        
<em>Tania let her borrow the ipad, but she asked her to be careful </em>is a compound sentences because of the use of 'but'. Whenever you use <em>but, and </em>or <em>so</em> in a sentence, you are writing or stating a compound sentence since you are joining with such conjunction two independent clauses. 
 
        
             
        
        
        
I think is d) (to those who oppose etc...) 
        
                    
             
        
        
        
The technique makes both excerpts effective is an appeal to logic.
Logos is the logic, reasoning and argument, or simulation of it, in a persuasive appeal. 
Logos is a persuasive technique that tries to persuade an audience using logical arguments and supporting evidence.