Answer: A. Confident yet confused
Explanation: 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.
When the two comets collided, it was a moment of impact.
The students had a moment of impact in the hallway when they ran into each other.
The only sound heard is an icy whisper
imagery is a figurative illustration, where you can imagine it happening in your mind
like: see/feel/smell/hear.
Okay, the answer is -0.35...but the way you wrote the problem is unclear.