Read the text trailer for the short story “4102 Elm Street.” Strange noises. Weird odors. No one seen going either in or out. Andrew knew something strange was going on in the house across the street, and he was determined to find out what it was. Armed with time, a map of the neighborhood, and a magnifying glass, Andrew set out to solve the mystery of 4102 Elm Street. He had no idea what he would find . . . and he was a little afraid to find out!

The music that would best match the tone of this text trailer would be

soft and classical.
happy and uplifting.
fast and exciting.
sad and melancholic.

Read the excerpt from the code book. without much hope of a theoretical breakthrough, cryptanalysts have been forced to look for a technological innovation. if there is no obvious way to reduce the number of steps required for factoring, then cryptanalysts need a technology that will perform these steps more quickly. silicon chips will continue to get faster as the years pass, doubling in speed roughly every eighteen months, but this is not enough to make a real impact on the speed of factoring—cryptanalysts require a technology that is billions of times faster than current computers. consequently, cryptanalysts are looking toward a radically new form of computer, the quantum computer. if scientists could build a quantum computer, it would be able to perform calculations with such enormous speed that it would make a modern supercomputer look like a broken abacus. the author’s purpose in this paragraph is to convince the readers to pursue a career in analysis. explain the need for faster technology in cryptanalysis. entertain with interesting stories about supercomputers. argue for more money to develop a quantum computer.