There is no underlined word.
Sally is a Direct Object
Best is a predicate adjective
Is is a predicate nominative
We need the passage to help
I would definitely say that this is the first option: Teenagers' concerns about appearance can affect their feelings about themselves.
Why do I think this? Well let me explain. In the first passage, the person specifically prays for the boy they fell in love with, as well as a new nose. That would indicate that they aren't happy with the way they look.
Now onto the second passage. Alfonso believes that he has to be in amazing shape to get the girls in "cut offs" to notice him, and to think that he's strong and handsome. He wants them to think that he's capable of handling himself, no matter the circumstances. It also states that he hates the way he looks. He's insecure about what he looks like.
I hope that this helps you.
Answer:
They give you a sense of loyalty and friendship. He is describing that his First Friend is obedient.
