This line implies that humans, have been created in a sort of synthetic environment. Humans in this case, are now the most intellegent beings on the known universe, they have been monitored, similar to test subjects. These people/ this race, is more intelligent than man, and humans have been in an experiment this whole time. 
Hope this helps.
        
                    
             
        
        
        
The answer should be D; All of these
        
                    
             
        
        
        
Answer: N/A
Explanation: You must provide texts or images of the context behind your question before anyone can answer accurately. 
 
        
             
        
        
        
Answer: had never seen
Explanation:
<em>Before she went to the zoo she </em><em><u>had never seen</u></em><em> a lion. </em>
<em />
Assuming the word in bold is <em>saw,</em> the correct tense would be to make use of the past participle of see because this is a Past Perfect tense. 
A Past Perfect tense is one that talks about an event in the past that happened before the event being talked about for instance, "I had seen her leave before I came into the classroom".
In this case the lady in question had not seen a lion before she went to the zoo so this is a past perfect and the correct tense for the verb therefore is "had ... seen".