Answer:
B. repeating key words for emphasis
Step-by-step explanation:
Rhetorical Language 
 The first technique is rhetorical language which involves the words you choose and how you use them. 
 Here are some examples of rhetorical language. 
 Strategy 
 How it Helps 
 Repeat key words and phrases 
 Identifies your most important points 
 Use active verbs and colorful adjectives 
 Keeps your speech lively and interesting 
 Use parallel phrases or a series of words 
 Provides a sense of rhythm and flow in your speech