Academic dishonesty is nothing new. As long as there have been homework assignments and tests, there have been cheaters. The way that cheating looks has changed over time though, particularly now that technology has made it easier than ever. A study by the Josephson Institute of Ethics interviewed 23,000 high school students and asked them a variety of questions about academic ethics. Of the teens surveyed, 51 percent said that they had knowingly cheated at some point on an exam but that they did not feel uneasy about the behaviour. A Common Sense Media survey found that 35 percent of students had cheated via smartphone, though the parents surveyed in that particular study did not believe their kids had ever cheated. In many cases, students did not realize that strategies like looking up answers on a smartphone were actually cheating at all.

        In today’s classrooms, students who cheat are rarely caught. There are no formulas written on the insides of hands or students looking across the aisle, or whispering answers to their classmates. Today’s students use smartphones, tablets or even in-class computers to aid their cheating attempts and leave no trace of their crimes. Since cheating through technology is not listed specifically as being against the rules in many school policies, students do not view the actions as unethical.

        The technology is being adopted so quickly that school districts cannot adequately keep up with cheating policies, or even awareness campaigns that alert students to the problem with using technology to find answers in a certain way. From a young age, students learn that answers exist conveniently at their fingertips through search engines and expert websites.

        Schools must develop anti-cheating policies that include technology and these policies must be updated consistently. Teachers must stay on guard when it comes to what their students are doing in classrooms and how technology could be playing a negative role in the learning process. Parents must also talk to their kids about the appropriate ways to find academic answers and alert them to unethical behaviours that may seem innocent in their own eyes.

解析：B。根据题干中的Common Sense Media可定位至原文第一段倒数第二句。该句提到了常识媒体所做的一项调查，并在下一句中指出，在许多情况下，学生根本没有意识到，在智能手机上查答案这样的做法实际上是在作弊。由此可知，很多学生并没有意识到自己是在作弊，B项与此内容相符，其中的Many students对应原文第一段最后一句中的In many cases，unknowingly是对该句中did not realize的同义替换，故正确答案为B。

错项排除：原文中提到有些接受采访的家长不相信他们的孩子曾作过弊，这里只是调查了这些家长的想法，没有体现出过度保护的含义，A项过度引申，故排除。C项和D项在原文中都未提及，故均可排除。