How is ethnicity similar to race?

a. they can both be seen as universal norms.
b. they have both been used to categorize people.
c. they both refer to where someone was born.
d. they are both based on the shape of a person's eyes.

It's B. They have both been used to categorize people.

Explanation:

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)