For a reader to contrast two or more things, the reader must consider how the things are different.
Another possible answer: understand/comprehend
Answer: An adverbial clause
(Trying to understand the question, and I do a bit) Because It means that the people's families are proud or happy of them, and that the people who own the nation are proud of them too. I hope this helped!
Thanks, and have a nice day!
~Steve
Hope this helps...........