Answer:you should use a ?
Explanation: because he just added on to it
 
        
             
        
        
        
Answer:
Thanks to a project called After Dark which uses robots to broadcast gallery tours via a web feed, people from around the world <em>have </em>the opportunity to visit London's Tate Britain art gallery from the comfort of their homes. 
 
        
             
        
        
        
The people will have journeyed to the center of the earth. I think this because it is the title. This is fantasy because the center of the earth is too hot to travel to. The people will probably get burnt next.
        
             
        
        
        
Expresses a negative connotative meaning (:
        
             
        
        
        
I believe B would be best.