Which statement best expresses the central idea of the passage 
        
             
        
        
        
He became more flirtatious and sociable towards others. He went from a shy boy to a strong confident male. 
        
             
        
        
        
A, selecting an appropriate topic
        
                    
             
        
        
        
Answer:
She raises the stakes. Giving the audience someone else to care about increases the suspense level.
Explanation:
 
        
             
        
        
        
For me, the answer is letter D.
Only choice D has the technical words associated to geography. The rest of the choices contain common words that any mundane could use. But choice D talks about geology itself in the ocean which is highly influenced by drilling and mining. Knowledgeable readers would understand this because drilling and mining require workers to tap into the geological rocks deep beneath the ground which may cause a significant alteration in the oceanic geology.