Which statement from "Mexicans Begin Jogging" best supports its theme of the diversity that it at the heart of being an American?

a. "Since I was on his time, I ran..."
b. "Their vans and my boss waved for us to run"
c. "No time for lies, he said and he pressed a dollar in my palm.."
d. " What could I do but yell vivas to baseballs, milkshakes, and those sociologists..."

d. "What could I do but yell vivas to baseballs, milkshakes, and those sociologists..."

This statement suggests that despite the differences in culture and background, the narrator still finds common ground and celebrates the diversity of American life. The use of "vivas" to express support and enthusiasm for these diverse elements further emphasizes the theme of diversity in being an American.