Orson Welles said, "We've been putting on all sorts of things from the most realistic situations to the wildest fantasy and nobody ever bothered to get serious about them before. We just can't understand why this should have had such an amazing reaction.” They did not know at the time that mostly of the people were listening other famous program so by the time the change to Welles program they did not know it was a history. Welles was not sure what was happening and why all the people get panic however they programs was presented with and introduction which made him feel confident.
B, because it doesn't exactly quicken as in a, no odd characters are introduced, and these not really any details we need to know that are left out. I picked B because there are intentionally larger words.
