Which of the following documents is best matched to the main idea it supports?

Apex plz i’m almost done if i get this all right

2. what was the dred scott decision about? what do we learn from this supreme court case?

Why were the chang and xi rivers important to china’s development? a. they keep invaders out. c. they kept china isolated. b. they provided a route for ships to travel inland. d. they provided boundaries for the different political sections