The given line above is actually made by Francis Pharcellus Church which is taken from "<span>Yes, Virginia, There is a Santa Claus". And based on this line, I can say that the emotion that the author appeals here is awe and wonder in the unknown. The best answer to this would be option B. Hope this helps.</span>
Exposition provides reader with information, sometimes it is nonessential info and can be revealed simply with exposition dialogue
This is the correct way to say it.
