You need to upload pictures of the sources so we can see them :)
Answer:
In Hawaii v. Trump, the Supreme Court considered whether President Trump's travel ban exceeds the President's delegated powers under the Immigration and Nationality Act and violates the Establishment Clause of the First Amendment
Using a river as a boundary (border) may be a poor choice because:
[Editor's Comment: Use process of elimination!]
Select one:
a. Rivers tend to bring people together rather than separate groups of people
<em>[Yes]</em>
b. The course of a river can change leading to a land dispute
<em>[Yes, but the direction of river flow should not change its location, and so the border will remain the same.]</em>
c. Rivers do not follow straight lines are difficult to map
<em>[Yes]</em>
d. All of the above
e. Both A and B above