I'm pretty sure it's D. Preview, plan, predict. I had this question last year.
Something wherein a related thing stands for the thing itself is called a me<span>tonymy</span>
You walk into the school wondering what you should eat as a snack. You walk past many healthy and unhealthy snacks. But now you have to choose of what kind you want. Students attending schools with vending machines face this problem everyday: healthy or unhealthy. In my opinion, schools should offer healthy vending machines because students would have a healthier snack choice, it would lower obesity rates, and students would be able to realize of what is a better choice of food for their body.
