Read the following summary of the article. The author's great-great-grandfather and many other Chinese immigrants worked in rough terrain to build one of America's greatest feats of engineering. The author sees the discrimination and erasure that followed their accomplishment as a complex legacy that is mirrored in the conditions and treatment of immigrants today.

Is this an objective and accurate summary? How do you know?

A
Yes; it avoids mentioning the pride that the author's ancestor felt about his work on the transcontinental railroad, which would make the summary too subjective.
B
Yes; it explains the significance of the railroad project as well as the treatment of those who built it, which the author views as relevant to immigration today.
C
No; it suggests that the descendants of other Chinese immigrants feel similarly to the author, which is a clearly subjective view of the article.
D
No; it lacks evidence regarding the difficulty of building the railroad, which is an essential detail for understanding Yuan Son's suffering.