Is the subject complement in the sentence a noun, pronoun, or adjective?

the new park in the neighborhood has been busy all week.

a.
noun

b.
adjective

c.
pronoun

Which excerpt from the passage provides evidence of a chronological structure? o “slavery was abolished thirty years before the emancipation proclamation." "the sugar plantation owners were desperate." "so the british owners looked to another part of the empire." "thousands of men and women were given five-year contracts.