Imagine you are a teacher and you are introducing your 10th-graders to an important national test. As you open a bag of chips and check your phone for text messages, you explain that staying focused and double-checking answers is key, as that test may determine their post-graduation options. If your students do not pay attention to the material, it is probably because: A. You are delivering a mixed message. B/ Your message was not the right level of complexity. C. You are delivering a message without listening. D. Your message was not vocalized optimally.