D. When you and your friends hear this recording, it will be exciting.
An antecedent, by definition, is a word or a phrase that is referred to by an element that follows it in the same sentence or paragraph, typically. When we look at item “D,” we are left with the question: “What will be exciting?” Because “it” could be anything, it is safe to say that the antecedent is missing.
Answer:
Out of school and in a better life
In this case, there are two different pronunciations given for the word because, depending on its part of speech, the word has two distinctly different uses, which are pronounced differently. As you noticed from the dictionary entry, the word mobile can either be used as a noun or as an adjective. And depending how it is used, the pronunciation of the word changes.