Explain how each of these was important to u. s. pacific expansion?

Pacific Rivals: The United States' Pacific Expansion to 1898. Earliest Times Few nations' history is as glorious, and glorified, as the United States'. Britain ranks among those, but the U.S., in both perception and reality, has outdone its parent nation.

3.a

4.d

5.b

6.b

7.c

8.a

9.d

10.a

i thinl it is the 1st answer