I’m not sure if you meant “convince” and I don’t know the options giving but you can use words like persuade or prove or etc.
Answer:
pampered but ignorant( I think!)
Explanation:
The central claim for the argument is known as the thesis.
I believe its both but if I had to choose one I'd say
you should not chew gum in class because it's rude
Why:
It makes it look like your uninterested and not listening
If you have a cell phone yes, most students would use it for social media but it may also be used for school related topics.