On behalf of the great state of Illinois. let me express my deep gratitude for the privilege of addressing this convention. Tonight is a particular honor for me... My father grew up herding goats, went to school in a But my grandfather had larger dreams for his son. Through hard work and perseverance my father got a scholarship to study in America

I stand here knowing that my story is part of the larger American story that I owe a debt to all of those who came before me, and that in no other country on earth, is my story even possible

What is the central claim Mr. Obama is making in this section of the speech?

O Mis background makes him perfect for public office

O He has a unique rags-to-riches story despite his hard upbringing

America is a unique country that helped him become who he is

O Even though his parents and grandparents would have preferred to live elsewhere, they knew America would give him the greatest opportunities