Journeys across the united states in the mid-1800s:
o
a. were completed mostly by railroad.
o
b. were long and dangerous.
c. were completed mostly by ship.
o
d. all of the above
apex

B) Were long and dangerous

Explanation:

A small portion of the journey was completed by boat with most of it being a wagon ride that was very dangerous.

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.

no one really purchased it themselves, it was all america, they had debates etc.