Answer:
Your answer would be "to be chief".
Explanation:
"To be chief" is an infinitive clause which functions as the direct object of the transitive verb <em>likes. </em>An infinitive is a verbal consisting of the particle <em>to </em>plus a verb. In this case, the transitive verb <em>to like</em> selects two arguments: the NP <em>he </em>and the infinitive clause <em>to be chief.  </em>In this way, it is possible to say that the inifinitive clause functions as an noun phrase. NPs usually occupy the direct object position.
 
        
                    
             
        
        
        
Okay, I read it, now, What is you question? I need more to run with :)
        
                    
             
        
        
        
Answer:
D
Explanation:
"Jeff, the famous author and inventor, arrived late at the lecture hall for his public appearance." 
The famous author and inventor is adding details on Jeff, so commas have to surround it.