Respuesta :
There are several literal questions that can be asked and used by the above excerpt. One would be "Why would Mr. Yallow want to ruin the system?". Another question would be "Why was Graciella Uriarte expelled from school?".
One of the questions you could ask is "Why/When was Graciella Uriarte expelled?" From the passage, we know that Graciella was expelled last week. Moreover, we know that she had bought a radio-jammer from a head-shop near the 16th Street BART station, and that this had set off the countermeasures in the school hallway. Therefore, both of these literal questions could be answered by the passage.