When creating a testlike environment, it is very important for teachers to think about what elements help generate this environment and help students feel the seriousness that it entails. It is also vital to generate a sense of responsibility and of truthfulness, which means, eliminating all elements that might lead to possible distraction, or even, cheating. As such, it is really important for a teacher to think about the following elements: A time limit, because it makes students aware that the activity will not be at their own leisure, but there will be some limitations. The second is a quiet room, because aside from making people aware of seriousness, it stops distractions from happening. Finally, using no notes or textbooks is the final one, because it makes students aware that they are facing a challenge that requires of their level of memory and understanding of a topic and that they are being evaluated on these two characteristics. This is why, the correct answer for this question would be A: using your phone as a calculator, because a phone provides two things: a distraction because of the many features that it offers and that cannot be prevented and the second, a sense that it is possible to find the answers without having to resort to effort, memory and comprehension.
