Read the following context and choose the best option to answer the question.
Context: Heading into this convention on Opening the Space Frontier , I did not know what to expect . I hopped off the Metro in Crystal City in search of 12th Street and the Doubletree Hotel . I spent nearly 20 minutes navigating through the labyrinthine network of underground tunnels before I began to find my way . I thought that this is what living in an underground lunar colony must feel like : Sterile surroundings , bright artificial lighting and colorful art on the walls to make you forget where you are .
Question: Why is this preson going to the Opening of the Space frontier ?
Options: 
A. The underground tunnels beckoned him .
B. He loves Sterile surroundings , bright artificial lighting and trying to find his way thru mazes .
C. He did not want to see how to live on a Lunar Colony .
D. None of the above choices .


D