Hey there!
Im sorry if I'm wrong but I believe the answer is A
Many people wear contacts, thanks to Leonardo da Vinci.
Hope this helps
-IronWolfX
Answer:
Actually, it takes more commitment from society to accept immigrants as fellow humans who are seeking a better and safer place to live and create a life for themselves and family. It's the Americans who need to help immigrants feel American.
I don't believe a or b is the answer so i would eliminate those 2