The answer is: D) a piece of equipment.
The word <em>device </em>is a piece of mechanical or electronic equipment which is adapted for a particular purpose. In that respect, <em>equipment </em>refers to the necessary items for a particular purpose.
The rest of the options are incorrect because the narrator deals with a concrete appliance that measures calories - it does not burn food and it does not concern an abstract thought or scientific theory.
Answer: option 2
Explanation: Social media can have a good influnce on teenagers but it can also be a bad influence. Social media can be good for helping with homework, contacting friends, learing somthing new, est. social media can help with homework beacuse if you dont know somthing you can find somone to teach you. sometimes you dont remember what questions you have to do for homework; texing your friend giveing you the answer. when your on social media you can find somone teaching somthing that you didnt know about. social media can also be bad, it can be used for good but if your on it for to long you could forget to do your homework, chores, est. not doing your homework can be very bad for your grade as it can be very very importent. if you dont do your chores then your parents will get bad at you and you can get punnished. even thought social media can be used for good to much of it can be bad.
ps. i just stared writing paragaphs and i kinda rushed this and i hope you get a good mark
I don't know this book, but I can infer that Ralph may be in a tricky/dangerous social situation, and may have to be aware of the people around him and their intentions.